MAX TNT Cabling and Connectors Specifications

This appendix describes specifications for different facets of the MAX TNT, and discusses cabling requirements. The appendix contains these sections:

Serial port specification

Ethernet interface specifications

T1/PRI interface specifications

Serial host interface specifications

Serial WAN cabling specifications

IDSL cable specifications

SDSL cabling specifications

RADSL Cabling specifications

Slot card specifications

Serial port specification
Ethernet interface specifications
T1/PRI interface specifications
Serial host interface specifications
Serial WAN cabling specifications
IDSL cable specifications
SDSL cabling specifications
RADSL Cabling specifications
Slot card specifications

Serial port specification

The serila port uses a standard DE-9 female connector that conforms to the EIA RS-232 standard for serial interfaces. All MAX TNT models use the RS-232 pinouts listed in Table D-1

Table D-1. Serial port and cabling pinouts
DE-9 pin number	RS-232 signal name	Function	I/O
1	DCD	Data Carrier Detect	O
2	RD	Serial Receive Data	O
3	SD	Serial Transmit Data	I
4	DTR	Data Terminal Ready	I
5	GND	Signal Ground
6	DSR	Data Set Ready	O
7	RTS	Request to Send	I
8	CTS	Clear to Send	O
*9	*RI	*Ring Indicator	*O
*Pin 9 is not active (Ring Indication signal not supplied).

Ethernet interface specifications

A MAX TNT installed with the Ethernet interface supports the physical specifications of IEEE l802.3 with Ethernet 2 (Ethernet/DIX) framing. It provides a single Ethernet interface and can support any one of the following Ethernet types:

Coax (Coaxial): Thin Ethernet and IEEE 802.3 (10Base-2) with a BNC connector.
Note: The MAX TNT is not equipped with a Coax Ethernet interface.
10Base-T (Unshielded Twisted Pair): Twisted pair Ethernet and IEEE 802.3 (10Base-T) with an RJ-45 connector.
100Base-T (Unshielded Twisted Pair): Twisted pair Ethernet and IEEE 802.3u
(100Base-T) with an RJ-45 connector.
AUI (Attachment Unit Interface): Standard Ethernet and IEEE (10Base-5) with a 15-pin AUI connector.

T1/PRI interface specifications

This section provides the specifications for the MAX TNT's T1/PRI interface and covers cabling requirements.

Warning: To reduce the risk of fire, communication cable conductors must be 26 AWG or larger.

Warning: Afin de reduire les risques d'incendie, les fils conducteurs du cable de communication doivent etre d'un calibre minimum de 26 AWG (American Wire Gauge), cest- a-dire d'un minimum de 0,404 mm.

T1/PRI CSU requirements

Your requirements differ depending on whether a T1/PRI port on the MAX TNT is equipped with an internal Channel Service Unit (CSU).

If a T1/PRI port on the MAX TNT has an internal CSU, you can connect the port directly to the metallic interface of the WAN.
To avoid harming the WAN, you must contact your carrier for approval before installation. Once you install the MAX TNT, you must notify the carrier before disconnecting the MAX TNT from the WAN. If you disconnect or turn off the MAX TNT without prior notification, the carrier might temporarily discontinue your T1/PRI service.
The MAX TNT's internal CSUs are compatible with wet- and dry-loop T1/PRI lines, and with span-powered or wet-loop powered T1/PRI lines.
A T1/PRI port of the MAX TNT that does not have an internal CSU cannot connect directly to the WAN.
You must connect the port to other equipment that provides the interface to the WAN, such as an external CSU. Your carrier determines the correct setting for the line buildout setting of the CSU. You configure this parameter during installation. For more information, see the MAX TNT Reference Guide.

Table D-2 lists CSU specifications

Table D-2. CSU specifications
Information	Value
CSU Registration	2CZUSA-74421-DE-N
Critical Circuitry Power Source	Dry Loop from local AC power source
Line Capture Frequency	1.544 Mb/s +/- 200 b/s
Line Code	AMI or B8ZS
Line Framing	D4 or ESF
Line Input/Output Impedance	100 Ohms +/- 5%
Received Signal Level Range	DSX-1 level to -36 db
Transmitted Signal Level	DSX-1 level into 100 Ohms
Line Buildout	0.0, -7.5, -15.0, or -22.5 db
Pulse Density and Consecutive Zeros Enforcement	In accordance with requirements of AT&T Pub 62411
Line Loopback (LLB) Set Inband Code	(10000) repeating binary pattern
Line Loopback (LLB) Reset Inband Code	(100) repeating binary pattern

T1/PRI cable specifications

The maximum cable distance between the T1/PRI WAN interface equipment and the MAX TNT should not exceed 655 feet (200 m) for a MAX TNT without CSUs. Measure the line length and record it when you install the MAX TNT. You must specify this length when you configure the Line Profile parameters. For more information, see the MAX TNT Reference Guide.

Use only cables specifically constructed for transmission of T1/PRI signals. The cables should meet standard T1 attenuation and transmission requirements. The following specifications are recommended:

100 Ohm
Two twisted pairs, Category 3 or better

The WAN interface cables and plugs described in the following sections are available for the MAX TNT's WAN interfaces.

T1/PRI crossover cable: RJ48C/RJ48C

Install this cable when the WAN transmits on pins 5 and 4 and receives on pins 2 and 1. Refer to Figure D-1 and Table D-3.

Figure D-1. RJ48C/RJ48C crossover cable
Table D-3. RJ48C/RJ48C crossover cable specifications

Pair #

Signal

Male RJ48C

Male RJ48C

1

Receive

2
1

5
4

2

Transmit

5
4

2
1

.

Table D-3. RJ48C/RJ48C crossover cable specifications
Pair #	Signal	Male RJ48C	Male RJ48C
1	Receive	2 1	5 4
2	Transmit	5 4	2 1

T1/PRI straight-through cable: RJ48C/RJ48C

Before installing this cable, verify that the WAN transmits on pins 2 and 1 and receives on pins 5 and 4. Refer to Figure D-2 and Table D-4.

Figure D-2. RJ48C/RJ48C straight-through cable specifications
Table D-4. RJ48C/RJ48C straight-through cable specifications

Pair #

Signal

Male RJ48C

Male RJ48C

1

Receive

1
2

1
2

2

Transmit

5
4

5
4

Table D-4. RJ48C/RJ48C straight-through cable specifications
Pair #	Signal	Male RJ48C	Male RJ48C
1	Receive	1 2	1 2
2	Transmit	5 4	5 4

T1/PRI straight-through cable: RJ48C/DA-15

Before installing this cable, verify that the WAN transmits on pins 3 and 11 and receives on pins 1 and 9. Refer to Figure D-3 and Table D-5.

Figure D-3. RJ48C/DA-15 straight-through cable
Table D-5. RJ48C/DA-15 straight-through cable specifications

Pair #

Signal

Male RJ48C

Male DA-15P

1

Receive

1
2

3
11

2

Transmit

5
4

1
9

Table D-5. RJ48C/DA-15 straight-through cable specifications
Pair #	Signal	Male RJ48C	Male DA-15P
1	Receive	1 2	3 11
2	Transmit	5 4	1 9

T1/PRI crossover cable: RJ48C/DA

Before installing this cable, verify that the WAN transmits on pins 1 and 9 and receives on pins 3 and 11. Refer to Figure D-4 and Table D-6.

Figure D-4. RJ48C/DA crossover cable
Table D-6. RJ48C/DA crossover cable specifications

Pair #

Signal

Male RJ48C

Male DA-15P

1

Receive

1
2

1
9

2

Transmit

5
4

3
11

Table D-6. RJ48C/DA crossover cable specifications
Pair #	Signal	Male RJ48C	Male DA-15P
1	Receive	1 2	1 9
2	Transmit	5 4	3 11

T1/PRI straight-through cable: RJ48C/Bantam

The WAN side of the cable connects to dual bantam jacks. Refer to Figure D-5 and Table D-7.

Figure D-5. RJ48C/Bantam straight-through cable
Table D-7. RJ48C/Bantam straight-through cable specifications

Pair #

Signal

Male RJ48

Male Dual - 310P

1

Receive

1
2

Tip 1
Ring 1

2

Transmit

5
4

Tip 2
Ring 2

Table D-7. RJ48C/Bantam straight-through cable specifications
Pair #	Signal	Male RJ48	Male Dual - 310P
1	Receive	1 2	Tip 1 Ring 1
2	Transmit	5 4	Tip 2 Ring 2

T1 RJ48C-Loopback plug

This plug loops the transmit signal back to the MAX TNT

Table D-8. RJ48C-Loopback plug specifications
Pair #	Signal	Male RJ48C
1	Receive	1 (connects to 5) 2 (connects to 4)
2	Transmit	5 (connects to 1) 4 (connects to 2)

T1/PRI WAN connectors

Table D-9 lists the pins on the T1/PRI WAN port used for Transmit and Receive. The remaining pins are not connected.

Table D-9. Transmit and Receive pins
MAX TNT T1/PRI interface	RJ48C DTE
Receive (input) pair, Tip (T1) Receive (input) pair, Ring (R1)	Position 2 Position 1
Transmit (output) pair, Tip (T) Transmit (output) pair, Ring (R)	Position 5 Position 4

WAN switched services available to the MAX TNT

The MAX TNT is compatible with both AT&T and Northern Telecom central office switches, and can access all T1/PRI switched digital services offered by AT&T's ACCUNET Switched Digital Services:

MCI 56 kbps and 64 kbps services
Sprint Switched 56 kbps and 64 kbps services
MultiRate and GloBanD (and GVPN in CCITT countries) PRI network services

Note: The MAX TNT can only access Switched-56 kbps services on a T1 access line or a Switched-56 line.

For a listing of the compatible switch types, see the Switch Type parameter in the MAX TNT Reference Guide. In addition to switched circuits, the MAX TNT can connect to nailed-up circuits, and to aggregate nailed-up and switched circuits.

Serial host interface specifications

This section describes the cabling requirements, timing requirements, and interface types for the serial host ports on the MAX TNT.

The MAX TNT serial WAN ports are compatible with the following three electrical standards:

RS-449/422
V.35
X.21

Selection of the proper cable between a serial host port and the serial device ensures:

The proper mapping of pinouts from the MAX TNT to the application equipment
Proper voltage levels

In the cable wiring tables that follow, the MAX TNT is the DCE (Data Circuit-Terminating Equipment) device, while the host equipment is the DTE (Data Terminal Equipment) device. The serial host interface cabling tables use the abbreviations listed in Table D-10. Note that the Send timing and Receive timing clocks are supplied to the host by the MAX TNT.

Table D-10. Serial host interface cabling abbreviations
Abbreviation	Explanation
FGND	Chassis Ground
SGND	Receive Common Ground
SD+	Send Data +
SD-	Send Data -
RD+	Receive Data +
RD-	Receive Data -
ST+	Send Timing +
ST-	Send Timing -
RT+	Receive Timing +
RT-	Receive Timing -
TT+	Terminal Timing +
TT-	Terminal Timing -
DSR	Data Set Ready
DCD (CD)	Data Carrier Detect
RTS	Request to Send
RI	Ring Indicate
DTR	Data Terminal Ready

V.35 cabling

The pinouts for different types of V.35 cabling are listed in the sections that follow.

V.35/V.25 bis cable to Cisco

This cable connects the MAX TNT to the V.35 port of a Cisco router that uses V.25 bis dialing. It has the pinouts shown in Figure D-6 and Table D-11.

Figure D-6. V.35/V.25 bis cable to Cisco
Table D-11. V.35/V.25 bis cable to Cisco pinouts

Pair #

Signal

MAX TNT male DB-44

Host female V.35

1

FGND

1

A

2

SD+
SD-

26
27

P
S

3

RD+
RD-

2
3

R
T

4

ST+
ST-

4
5

Y
AA

5

RT+
RT-

14
15

V
X

6

DSR
DCD

6
36

E, F*
D

7

RTS
RI

7
43

C
J

8

DTR
SGND

8
25

H
B

9

TT+
TT-

16
17

U
W

Table D-11. V.35/V.25 bis cable to Cisco pinouts
Pair #	Signal	MAX TNT male DB-44	Host female V.35
1	FGND	1	A
2	SD+ SD-	26 27	P S
3	RD+ RD-	2 3	R T
4	ST+ ST-	4 5	Y AA
5	RT+ RT-	14 15	V X
6	DSR DCD	6 36	E, F* D
7	RTS RI	7 43	C J
8	DTR SGND	8 25	H B
9	TT+ TT-	16 17	U W

V.35 cable to generic serial host

This cable connects the MAX TNT to the V.35 ports of a wide variety of equipment. A female-to-male V.35 gender changer is included when you order the cable. It has the pinouts listed in Table D-12.

Figure D-7. V.35 cable to generic serial host
Table D-12. V.35 cable to generic serial host pinouts

Pair #

Signal

MAX TNT male DB-44

Host female V.35

1

FGND

1

A

2

SD+
SD-

26
27

P
S

3

RD+
RD-

2
3

R
T

4

ST+
ST-

4
5

Y
AA

5

RT+
RT-

14
15

V
X

6

DSR
DCD

6
36

E
D, F*

7

RTS
RI

7
43

C
J

8

DTR
SGND

8
25

H
B

9

TT+
TT-

16
17

U
W

10

RX/SEL

28, 44*

* Pin positions separated by commas are jumped to each other.

Table D-12. V.35 cable to generic serial host pinouts
Pair #	Signal	MAX TNT male DB-44	Host female V.35
1	FGND	1	A
2	SD+ SD-	26 27	P S
3	RD+ RD-	2 3	R T
4	ST+ ST-	4 5	Y AA
5	RT+ RT-	14 15	V X
6	DSR DCD	6 36	E D, F*
7	RTS RI	7 43	C J
8	DTR SGND	8 25	H B
9	TT+ TT-	16 17	U W
10	RX/SEL	28, 44*
* Pin positions separated by commas are jumped to each other.

RS-449 cable to generic serial host

This cable connects the MAX TNT to the RS-449 ports of a wide variety of equipment. A female-to-male DB-37 gender changer is included when you order the cable. It has the pinouts listed in Table D-13.

Figure D-8. RS-449 cable to generic serial host
Table D-13. RS-449 cable to generic serial host pinouts

Pair #

Signal

MAX TNT male DB-44

Host female DB-37

1

FGND

1

1

2

SD+
SD-

29
30

4
22

3

RD+
RD-

40
39

6
24

4

ST+
ST-

42
41

5
23

5

RT+
RT-

37
38

8
26

6

DSR
DCD/CTS

6
36

11
9, 13*

7

RTS
RI

7
43

7
15

8

DTR
SGND

8
25

12
19, 20, 37*

9

TT+
TT-

31
32

17
35

10

RX/SEL

20, 28*

* Pin positions separated by commas are jumped to each other.

Table D-13. RS-449 cable to generic serial host pinouts
Pair #	Signal	MAX TNT male DB-44	Host female DB-37
1	FGND	1	1
2	SD+ SD-	29 30	4 22
3	RD+ RD-	40 39	6 24
4	ST+ ST-	42 41	5 23
5	RT+ RT-	37 38	8 26
6	DSR DCD/CTS	6 36	11 9, 13*
7	RTS RI	7 43	7 15
8	DTR SGND	8 25	12 19, 20, 37*
9	TT+ TT-	31 32	17 35
10	RX/SEL	20, 28*
* Pin positions separated by commas are jumped to each other.

Note: To manufacture an RS-449 cable for Cisco routers, use the above wiring list and connect the following DB-37 pins to SGND:

DSR- (pin 29)
CD- (pin 31)
CTS- (pin 27).

X.21 cabling

Ascend supplies a single X.21 cable.

X.21 cable to generic serial host

If your host is equipped with an X.21 interface, the host cable has the pinouts listed in Table D-14.

Figure D-9. X.21 cable to generic serial host

Table D-14. X.21 cable to generic serial host pinouts

Model Number MBHD-X21

Part number 2510-0098-001

Pair #

X.21 signal name

Equivalent V.35/RS-449 signal name

MAX TNT male DB-44

Host Female DA-15

1

G*

SGND*

25*

8

2

T(A)
T(B)

SD+
SD-

29
30

2
9

3

R(A)
R(B)

RD+
RD-

40
39

4
11

4

S(A)
S(B)

ST+
ST-

42
41

6
13

5

C(A)
I(A)

DTR
DCD

8
36

3
5

6

RX/SEL
I(B)*

RX/SEL
SGND*

20, 28**
25***

12***

7

B(A)
B(B)

BT+
BT-

18
19

7
14

8

C(B)

8, 10****

Table D-14. X.21 cable to generic serial host pinouts
Model Number MBHD-X21 Part number 2510-0098-001
Pair #	X.21 signal name	Equivalent V.35/RS-449 signal name	MAX TNT male DB-44	Host Female DA-15
1	G*	SGND*	25*	8
2	T(A) T(B)	SD+ SD-	29 30	2 9
3	R(A) R(B)	RD+ RD-	40 39	4 11
4	S(A) S(B)	ST+ ST-	42 41	6 13
5	C(A) I(A)	DTR DCD	8 36	3 5
6	RX/SEL I(B)*	RX/SEL SGND*	20, 28 25*	12***
7	B(A) B(B)	BT+ BT-	18 19	7 14
8	C(B)			8, 10****

Table D-15 specifies the recommended maximum length of the cable between the MAX TNT and the serial host equipment. Longer distances at the specified data rates are possible when you use terminal timing, and still longer distances are supported by the installation of the Ascend RPM, a hardware device that provides an extended distance high-speed link between the MAX TNT and the serial host equipment.

Table D-15. Cable length requirements
Maximum cable length	Serial data rate
25 feet	3 Mbps
75 feet	2 Mbps
150 feet	512 kbps

Serial WAN cabling specifications

The MAX TNT unit's serial WAN interface supports nailed-up connections to the WAN. Data packets from the MAX TNT bridge/router module can use this interface, but bit streams from devices connected to the MAX TNT's serial host ports cannot.

The MAX TNT's serial WAN port is compatible with the following two electrical standards:

V.35
RS-449/422

In the cable wiring tables that follow, the MAX TNT is the DTE (Data Terminal Equipment) that connects to a DCE (Data Circuit-Terminating Equipment) device through its serial WAN port. The MAX TNT receives the Send timing and Receive timing clocks from the DCE device.

V.35 cable to WAN

You connect a V.35 cable to the V.35 port of a DCE device. The V.35 cable has the pinouts described in Table D-16.

Table D-16. V.35 cable pinouts
Pair #	Signal	MAX TNT male DB-44	Host male V.35
1	FGND RI	1 8	A J
2	SD+ SD-	39 40	P S
3	RD+ RD-	30 29	R T
4	ST+ ST-	41 42	Y AA
5	RT+ RT-	32 31	V X
6	TT+ TT-	38 37	U W
7	DTR DSR	6 11	H E
8	DCD SGND	9 25	F B
9	CTS RTS	7 36	D C
Pair #	Signal	MAX TNT Male DB-44	Host Male V.35

RS-449 cable to WAN

You can connect an RS-449 cable to the RS-449 port of a DCE device. The RS-449 cable has the pinouts described in Table D-17.

Table D-17. RS-449 cable pinouts
Pair #	Signal	MAX TNT male DB-44	Host female DB-37
1	FGND RI	1 8	1 15
2	SD+ SD-	39 40	4 22
3	RD+ RD-	30 29	6 24
4	ST+ ST-	41 42	5 23
5	RT+ RT-	32 31	8 26
9	TT+ TT-	38 37	17 35
8	DTR DSR	6 11	12 11
6	DCD SGND	9 25	13 19, 20, 37*
7	CTS RTS	7 36	9 7
* Pin positions separated by commas are jumped to each other.

This section provides the cable specifications for the Ascend cable serial WAN cable (2510-0260-002).

Figure D-10. Serial WAN cable

Table D-18. Serial WAN cable pinouts

J1 Pin

J2 Pin

46

A

42

D

43

E

35

C

34

H

33

F

16

B

44

K

16

B

18

T

17

R

28

S

27

P

20

X

19

V

26

W

25

U

24

Y

23

AA

Table D-18. Serial WAN cable pinouts
J1 Pin	J2 Pin
46	A
42	D
43	E
35	C
34	H
33	F
16	B
44	K
16	B
18	T
17	R
28	S
27	P
20	X
19	V
26	W
25	U
24	Y
23	AA

IDSL cable specifications

This section provides the specifications for the dual 50-pin telco to triple DB37 cable (2510-0311-002) IDSL cable.

Figure D-11. IDSL dual 50-pin telco to triple DB37 cable

Table D-19. IDSL cable pinouts

Pair

P1 Pin

P2 Pin

P3 Pin

J1 Pin

J2 Pin

Signal

1

36

1

Tip1

1

37

26

Ring 1

2

18

2

Tip 2

2

19

27

Ring 2

3

16

3

Tip 3

3

17

28

Ring 3

4

14

4

Tip 4

4

15

29

Ring 4

5

12

5

Tip 5

5

13

30

Ring 5

6

10

6

Tip 6

6

11

31

Ring 6

7

8

7

Tip 7

7

9

32

Ring 7

8

6

8

Tip 8

8

7

33

Ring 8

9

4

9

Tip 9

9

5

34

Ring 9

10

2

10

Tip 10

10

3

35

Ring 10

11

1

11

Tip 11

11

20

36

Ring 11

12

21

12

Tip 12

12

22

37

Ring 12

13

23

13

Tip 13

13

24

38

Ring 13

14

25

14

Tip 14

14

26

39

Ring 14

15

32

15

Tip 15

15

33

40

Ring 15

16

34

16

Tip 16

16

35

41

Ring 16

17

36

17

Tip 17

17

37

42

Ring 17

18

18

18

Tip 18

18

19

43

Ring 18

19

16

19

Tip19

19

17

44

Ring 19

20

14

20

Tip 20

20

15

45

Ring 20

21

12

21

Tip 21

21

13

46

Ring 21

22

10

22

Tip 22

22

11

47

Ring 22

23

8

23

Tip 23

23

9

48

Ring 23

24

6

24

Tip 24

24

7

49

Tip 24

1

4

1

Tip1

1

5

26

Ring 1

2

2

2

Tip 2

2

3

27

Ring 2

3

1

3

Tip 3

3

20

28

Ring 3

4

21

4

Tip 4

4

22

29

Ring 4

5

23

5

Tip 5

5

24

30

Ring 5

6

25

6

Tip 6

6

26

31

Ring 6

7

32

7

Tip 7

7

33

32

Ring 7

8

34

8

Tip 8

8

35

33

Ring 8

9

36

9

Tip 9

9

37

34

Ring 9

10

18

10

Tip 10

10

19

35

Ring 10

11

16

11

Tip 11

11

17

36

Ring 11

12

14

12

Tip 12

12

15

37

Ring 12

13

12

13

Tip 13

13

13

38

Ring 13

14

10

14

Tip 14

14

11

39

Ring 14

15

8

15

Tip 15

15

9

40

Ring 15

16

6

16

Tip 16

16

7

41

Ring 16

17

4

17

Tip 17

17

5

42

Ring 17

18

2

18

Tip 18

18

3

43

Ring 18

19

1

19

Tip19

19

20

44

Ring 19

20

21

20

Tip 20

20

22

45

Ring 20

21

23

21

Tip 21

21

24

46

Ring 21

22

25

22

Tip 22

22

26

47

Ring 22

23

32

23

Tip 23

23

33

48

Ring 23

24

34

24

Tip 24

24

35

49

Tip 24

Table D-19. IDSL cable pinouts
Pair	P1 Pin	P2 Pin	P3 Pin	J1 Pin	J2 Pin	Signal
1	36			1		Tip1
1	37			26		Ring 1
2	18			2		Tip 2
2	19			27		Ring 2
3	16			3		Tip 3
3	17			28		Ring 3
4	14			4		Tip 4
4	15			29		Ring 4
5	12			5		Tip 5
5	13			30		Ring 5
6	10			6		Tip 6
6	11			31		Ring 6
7	8			7		Tip 7
7	9			32		Ring 7
8	6			8		Tip 8
8	7			33		Ring 8
9	4			9		Tip 9
9	5			34		Ring 9
10	2			10		Tip 10
10	3			35		Ring 10
11	1			11		Tip 11
11	20			36		Ring 11
12	21			12		Tip 12
12	22			37		Ring 12
13	23			13		Tip 13
13	24			38		Ring 13
14	25			14		Tip 14
14	26			39		Ring 14
15	32			15		Tip 15
15	33			40		Ring 15
16	34			16		Tip 16
16	35			41		Ring 16
17		36		17		Tip 17
17		37		42		Ring 17
18		18		18		Tip 18
18		19		43		Ring 18
19		16		19		Tip19
19		17		44		Ring 19
20		14		20		Tip 20
20		15		45		Ring 20
21		12		21		Tip 21
21		13		46		Ring 21
22		10		22		Tip 22
22		11		47		Ring 22
23		8		23		Tip 23
23		9		48		Ring 23
24		6		24		Tip 24
24		7		49		Tip 24
1		4			1	Tip1
1		5			26	Ring 1
2		2			2	Tip 2
2		3			27	Ring 2
3		1			3	Tip 3
3		20			28	Ring 3
4		21			4	Tip 4
4		22			29	Ring 4
5		23			5	Tip 5
5		24			30	Ring 5
6		25			6	Tip 6
6		26			31	Ring 6
7		32			7	Tip 7
7		33			32	Ring 7
8		34			8	Tip 8
8		35			33	Ring 8
9			36		9	Tip 9
9			37		34	Ring 9
10			18		10	Tip 10
10			19		35	Ring 10
11			16		11	Tip 11
11			17		36	Ring 11
12			14		12	Tip 12
12			15		37	Ring 12
13			12		13	Tip 13
13			13		38	Ring 13
14			10		14	Tip 14
14			11		39	Ring 14
15			8		15	Tip 15
15			9		40	Ring 15
16			6		16	Tip 16
16			7		41	Ring 16
17			4		17	Tip 17
17			5		42	Ring 17
18			2		18	Tip 18
18			3		43	Ring 18
19			1		19	Tip19
19			20		44	Ring 19
20			21		20	Tip 20
20			22		45	Ring 20
21			23		21	Tip 21
21			24		46	Ring 21
22			25		22	Tip 22
22			26		47	Ring 22
23			32		23	Tip 23
23			33		48	Ring 23
24			34		24	Tip 24
24			35		49	Tip 24

SDSL cabling specifications

This section provides the specifications for the 50-pin telco to dual DB37 cable (2510-0286-002) SDSL cable.

Figure D-12. SDSL 50-pin telco to dual DB37 cable

Table D-20. SDSL cable pinouts

Pair

P1 Pin

P2 Pin

J1 Pin

Signal

1

36

1

Tip1

1

37

26

Ring 1

2

18

2

Tip 2

2

19

27

Ring 2

3

16

3

Tip 3

3

17

28

Ring 3

4

14

4

Tip 4

4

15

29

Ring 4

5

12

5

Tip 5

5

13

30

Ring 5

6

10

6

Tip 6

6

11

31

Ring 6

7

8

7

Tip 7

7

9

32

Ring 7

8

6

8

Tip 8

8

7

33

Ring 8

9

4

9

Tip 9

9

5

34

Ring 9

10

2

10

Tip 10

10

3

35

Ring 10

11

1

11

Tip 11

11

20

36

Ring 11

12

21

12

Tip 12

12

22

37

Ring 12

13

36

13

Tip 13

13

37

38

Ring 13

14

18

14

Tip 14

14

19

39

Ring 14

15

16

15

Tip 15

15

17

40

Ring 15

16

14

16

Tip 16

16

15

41

Ring 16

17

12

17

Tip 17

17

13

42

Ring 17

18

10

18

Tip 18

18

11

43

Ring 18

19

8

19

Tip19

19

9

44

Ring 19

20

6

20

Tip 20

20

7

45

Ring 20

21

4

21

Tip 21

21

5

46

Ring 21

22

2

22

Tip 22

22

3

47

Ring 22

23

1

23

Tip 23

23

20

48

Ring 23

24

21

24

Tip 24

24

22

49

Tip 24

Table D-20. SDSL cable pinouts
Pair	P1 Pin	P2 Pin	J1 Pin	Signal
1	36		1	Tip1
1	37		26	Ring 1
2	18		2	Tip 2
2	19		27	Ring 2
3	16		3	Tip 3
3	17		28	Ring 3
4	14		4	Tip 4
4	15		29	Ring 4
5	12		5	Tip 5
5	13		30	Ring 5
6	10		6	Tip 6
6	11		31	Ring 6
7	8		7	Tip 7
7	9		32	Ring 7
8	6		8	Tip 8
8	7		33	Ring 8
9	4		9	Tip 9
9	5		34	Ring 9
10	2		10	Tip 10
10	3		35	Ring 10
11	1		11	Tip 11
11	20		36	Ring 11
12	21		12	Tip 12
12	22		37	Ring 12
13		36	13	Tip 13
13		37	38	Ring 13
14		18	14	Tip 14
14		19	39	Ring 14
15		16	15	Tip 15
15		17	40	Ring 15
16		14	16	Tip 16
16		15	41	Ring 16
17		12	17	Tip 17
17		13	42	Ring 17
18		10	18	Tip 18
18		11	43	Ring 18
19		8	19	Tip19
19		9	44	Ring 19
20		6	20	Tip 20
20		7	45	Ring 20
21		4	21	Tip 21
21		5	46	Ring 21
22		2	22	Tip 22
22		3	47	Ring 22
23		1	23	Tip 23
23		20	48	Ring 23
24		21	24	Tip 24
24		22	49	Tip 24

RADSL Cabling specifications

This section provides the specifications for the 50-pin telco to quad DB37 cable (2510-0305-002) RADSL cable.

Figure D-13. RADSL 50-pin telco to quad DB37 cable

Table D-21. RADSL cable pinouts

Pair

P1 Pin

P2 Pin

P3 Pin

P4 Pin

J1 Pin

Signal

1

36

1

Tip1

1

37

26

Ring 1

2

18

2

Tip 2

2

19

27

Ring 2

3

16

3

Tip 3

3

17

28

Ring 3

4

14

4

Tip 4

4

15

29

Ring 4

5

12

5

Tip 5

5

13

30

Ring 5

6

10

6

Tip 6

6

11

31

Ring 6

7

36

7

Tip 7

7

37

32

Ring 7

8

18

8

Tip 8

8

19

33

Ring 8

9

16

9

Tip 9

9

17

34

Ring 9

10

14

10

Tip 10

10

15

35

Ring 10

11

12

11

Tip 11

11

13

36

Ring 11

12

10

12

Tip 12

12

11

37

Ring 12

13

36

13

Tip 13

13

37

38

Ring 13

14

18

14

Tip 14

14

19

39

Ring 14

15

16

15

Tip 15

15

17

40

Ring 15

16

14

16

Tip 16

16

15

41

Ring 16

17

12

17

Tip 17

17

13

42

Ring 17

18

10

18

Tip 18

18

11

43

Ring 18

19

39

19

Tip19

19

37

44

Ring 19

20

18

20

Tip 20

20

19

45

Ring 20

21

16

21

Tip 21

21

17

46

Ring 21

22

14

22

Tip 22

22

15

47

Ring 22

23

12

23

Tip 23

23

13

48

Ring 23

24

10

24

Tip 24

24

11

49

Tip 24

Table D-21. RADSL cable pinouts
Pair	P1 Pin	P2 Pin	P3 Pin	P4 Pin	J1 Pin	Signal
1	36				1	Tip1
1	37				26	Ring 1
2	18				2	Tip 2
2	19				27	Ring 2
3	16				3	Tip 3
3	17				28	Ring 3
4	14				4	Tip 4
4	15				29	Ring 4
5	12				5	Tip 5
5	13				30	Ring 5
6	10				6	Tip 6
6	11				31	Ring 6
7		36			7	Tip 7
7		37			32	Ring 7
8		18			8	Tip 8
8		19			33	Ring 8
9		16			9	Tip 9
9		17			34	Ring 9
10		14			10	Tip 10
10		15			35	Ring 10
11		12			11	Tip 11
11		13			36	Ring 11
12		10			12	Tip 12
12		11			37	Ring 12
13			36		13	Tip 13
13			37		38	Ring 13
14			18		14	Tip 14
14			19		39	Ring 14
15			16		15	Tip 15
15			17		40	Ring 15
16			14		16	Tip 16
16			15		41	Ring 16
17			12		17	Tip 17
17			13		42	Ring 17
18			10		18	Tip 18
18			11		43	Ring 18
19				39	19	Tip19
19				37	44	Ring 19
20				18	20	Tip 20
20				19	45	Ring 20
21				16	21	Tip 21
21				17	46	Ring 21
22				14	22	Tip 22
22				15	47	Ring 22
23				12	23	Tip 23
23				13	48	Ring 23
24				10	24	Tip 24
24				11	49	Tip 24

Slot card specifications

This section provides specifications for the MAX TNTslot cards.

T3 slot card specifications

The following table provides the specifications for the MAX TNT T3 card.

Table D-22. T3 card specifications
Electrical	DSX-3 per ANSI T1.404
Line Build Out	0 to 225 feet, or 226 to 450 feet
Receive Equalization	Based on cable length and transmitter
Line Code	B3ZS
Line Rate	44.736 Mbps +/- 20ppm
Frame Format	Per ANSI T1.107a (M23 or C-Bit Parity)
Alarm Signaling	On DS3 Red Alarm, yellow signal sent on the DS3, AIS sent on DS2s. On DS2 Red Alarm, AIS sent on DS1s.
Connectors	75 ohm BNC coaxial (2 line, 2 backup)

FrameLine slot card specifications

The following table provides the specifications for the MAX TNT FrameLine card.

Table D-23. FrameLine card specifications
Electrical	DSX-1 per ANSI T1.102 (DSX) DS1 per ANSI T1.403, Pub 62411 (CSU)
Line Build Out	0dB, -7.5db, -15db, -22.5db (CSU) 0-133 ft, 133-266 ft, 266-399 ft, 399-533 ft, 533-655 ft (DSX)
Receive Equalization	Based on cable length and transmitter
Line Code	AMI, B8ZS
Line Rate	1.544 Mbps +/- 32ppm
Frame Format	Per ANSI T1.107a (M23 or C-Bit Parity)
Alarm Signaling	Red Alarm, yellow signal
Connectors	10 RJ45 (100 ohm line)

IDSL specifications

The following table provides the specifications for the IDSL card.

Table D-24. IDSL card specifications
Transfer rate /transmission distance	128 Kbps (symmetric)
Interfaces per card	32 ports per card
Physical connectors	2 DB-37 connectors
Card weight	~3 pounds (1.37 kg)
Operating humidity	0-90%, non-condensing
Operating temperature	32-104° F (0-40° C)

RADSL specifications

The following table provides the specifications for the RADSL card.

Table D-25. RADSL card specifications
Transfer rate /transmission distance ¹	7.168Mbps/1.088Mbps up to 10,000 feet (3.05 km) 2.560Mbps/1.088Kbps up to 12,000 feet (3.7 km) 640Kbps/544Kbps up to 17,000 feet (5.18 km)
Interfaces per card	6 ports per card, up to 15 cards per system.
Physical connectors	DC37F. Cable converts this to a 50-pin telco connector.
Connector requirements	Must meet JIS C 5973 standards
Card dimensions	8.8 in high x 10.6 in long (22.35 cm x 26.92 cm)
Card weight	~3 pounds (1.37 kg)
Operating humidity	0-90%, non-condensing
Operating temperature	32-104° F (0-40° C)

¹ Currently, RADSL supports a maximum transmission rate of 2.56Mbps downstream and 1.0Mbps upstream for up to 12,000 feet (3.7km).

SDSL specifications

The following table provides the specifications for the SDSL line card.

Table D-26. SDSL card specifications
Transfer rate	768 Kbps (symmetric)
Transmission distance	12,000 feet (3.7 km)
Interfaces per card	16 ports per card, up to 15 cards per system
Physical connectors	2 DB37 to 50-pin telco connectors
Connector requirements	Must meet JIS C 5973 standards
Card dimensions	8.8 in high x 10.6 in long (22.35 cm x 26.92 cm)
Card weight	~3 pounds (1.37 kg)
Operating humidity	0-90%, non-condensing
Operating temperature	32-104° F (0-40° C)

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DE-9 pin number

RS-232 signal name

Function

I/O

Required equipment

Information

Value

Pair #

Signal

Male RJ48C

Male RJ48C

Pair #

Signal

Male RJ48C

Male RJ48C

Pair #

Signal

Male RJ48C

Male DA-15P

Pair #

Signal

Male RJ48C

Male DA-15P

Pair #

Signal

Male RJ48

Male Dual - 310P

Pair #

Signal

Male RJ48C

MAX TNT T1/PRI interface

RJ48C DTE

Abbreviation

Explanation

Pair #

Signal

MAX TNT male DB-44

Host female V.35

Pair #

Signal

MAX TNT male DB-44

Host female V.35

Pair #

Signal

MAX TNT male DB-44

Host female DB-37

X.21 cabling

Model Number MBHD-X21

Part number 2510-0098-001

Pair #

X.21 signal name

Equivalent V.35/RS-449 signal name

MAX TNT male DB-44

Host Female DA-15

Maximum cable length

Serial data rate

Pair #

Signal

MAX TNT male DB-44

Host male V.35

Pair #

Signal

MAX TNT male DB-44

Host female DB-37

J1 Pin

J2 Pin

Pair

P1 Pin

P2 Pin

P3 Pin

J1 Pin

J2 Pin

Signal

Pair

P1 Pin

P2 Pin

J1 Pin

Signal

Pair

P1 Pin