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Cable Specifications

Cable Specifications

Cable Specifications

This appendix provides the following cable assembly illustrations and pinout descriptions, which you can use to construct your own cables:

The cables available from us meet FCC part 15J Class A requirements and Verband Deutscher Electrotechniker (VDE) 0871 Limit B levels. If you construct your own cables, refer to the appropriate documentation regarding interference considerations and cable length limitations.


Assembling Your Own Cables

When assembling your cable, follow these steps:

Step 1 Fold back the braided shield to make electrical and mechanical connection with the metal shell on both ends.

Step 2 Cut unterminated wires back. Insulate or ensure insulation from other conductors.

Step 3 Use the following illustrations and connection tables as a guide to creating your own cables:


RS-232 Console and Auxiliary Port Signals and Pinouts

Refer to Table A-1 when assembling an RS-232 console cable, and refer to Table A-2 when assembling an RS-232 auxiliary port cable.

Table A-1 : Console Port RS-232 Signals (25-Pin D Connector)

Pin1 Signal Name Direction
1 Frame Ground --
2 Transmitted Data Input
3 Received Data Output
4 Request To Send Shorted together internally with Pin 5
5 Clear To Send --
6 Shorted to Pin 8 Output
7 Ground --
8 Carrier Detect Output
20 Data Terminal Ready Input

1 Any pin not referenced on a connector is not connected.

Table A-2 : Auxiliary Port RS-232 Signals (25-Pin D Connector)

Pin1 Signal Name Direction
1 Frame Ground --
2 Transmitted Data Output
3 Received Data Input
4 Request To Send Output
5 Clear To Send Input
7 Ground --
8 Carrier Detect Input
20 Data Terminal Ready Output
22 Ring Indicator Input

1 Any pin not referenced on a connector is not connected.


Serial Cable Pinouts

The following illustrations and tables provide the pinouts and signal descriptions for the RS-232, RS-449, V.35, X.21, and EIA-530 DTE cables.


RS-232

Figure A-1 shows the RS-232 cable assembly, and Table A-3 shows the cable pinouts.

fig_1.gif

Figure A-1 : RS-232 Cable Assembly

Table A-3 : RS-232 DTE Serial Cable Pinouts

72-0670-01 Connections1
50 Pin 25 Pin Type
J1-3 J1-36
J1-39
J1-40 		J2-5
J2-4 		Twisted Pair
J1-9
J1-42 		J2-8
J2-6 		Twisted Pair
J1-11
J1-44 		J2-2
J2-7 		Twisted Pair
J1-46
J1-30 		J2-3
J2-20 		Twisted Pair
J1-14
J1-47 		J2-18
J2-17 		Twisted Pair
J1-31
J1-15 		J2-15
J2-1 		Twisted Pair
J1-16 J2-24 Twisted Pair

1 Any pin not referenced on a connector is not connected.


RS-449

Figure A-2 shows the RS-449 cable assembly, and Table A-4 lists the cable pinouts.

h1027.gif

Figure A-2 : RS-449 Cable Assembly

Table A-4 : RS-449 DTE Serial Cable Pinouts

72-0672-01 Connections
50 Pin1 37 Pin Type
J1-5 J1-38
J1-7 J2-10
J1-1
J1-34 		J2-4
J2-22 		Twisted Pair
J1-2
J1-18 		J2-5
J2-23 		Twisted Pair
J1-35
J1-19 		J2-6
J2-24 		Twisted Pair
J1-4
J1-20 		J2-7
J2-25 		Twisted Pair
J1-37
J1-21 		J2-8
J2-26 		Twisted Pair
J1-22
J1-6 		J2-27
J2-9 		Twisted Pair
J1-8
J1-24 		J2-11
J2-29 		Twisted Pair
J1-41
J1-25 		J2-12
J2-30 		Twisted Pair
J1-10
J1-26 		J2-13
J2-31 		Twisted Pair
J1-43
J1-27 		J2-17
J2-35 		Twisted Pair
J1-36
J1-15 		J2-19
J2-1 		Twisted Pair
J1-44
J1-48 		J2-37
J2-20 		Twisted Pair

1 Any pin not referenced on a connector is not connected.


V.35

Figure A-3 shows the V.35 cable assembly with the resistor (301 ohms, 1/4 watt, ±1%), and Table A-5 lists the cable pinouts and signal descriptions.

h1479.gif

Figure A-3 : V.35 Cable Assembly

Table A-5 : V.35 DTE Serial Cable Pinouts and Signal Descriptions

72-0671-02 Connections
50 Pin1 34 Pin Type Signal Direction
J1-3 J1-36 Jumper MUX To Ground
J1-5 J1-38 Jumper MUX To Ground
J1-14
J1-Shield 		J2-K
J2-Shield 		Twisted Pair LTST
Not Used
J1-2
J1-18 		J2-Y
J2-AA 		Twisted Pair SCT+
SCT-
J1-12
J1-28 		J2-P
J2-S 		Twisted Pair TXD+
TXD-
J1-35
J1-19 		J2-R
J2-T 		Twisted Pair RXD+
RXD-
J1-37
J1-21 		J2-V
J2-X 		Twisted Pair SCR+
SCR-
J1-45
J1-29 		J2-U
J2-W 		Twisted Pair SCTE+
SCTE-
J1-42
J1-Shield 		J2-E
J2-Shield 		Twisted Pair DSR
Not Used
J1-9
J1-48 		J2-F
J2-A 		Twisted Pair RLSD
Ground
J1-40
J1-Shield 		J2-C
J2-Shield 		Twisted Pair RTS
Not Used
J1-2
J1-18 		J1-3
J1-5 		Resistor
Resistor 		SCT+
SCT- 		R To
Ground
J1-35
J1-19 		J1-36
J1-38 		Resistor
Resistor 		RXD+
RXD- 		R To
Ground
J1-37
J1-21 		J1-44
J1-48 		Resistor
Resistor 		SCR+
SCR- 		R To
Ground
J1-30
J1-44 		J2-H
J2-B 		Twisted Pair DTR
Ground
J1-39
J1-Shield 		J2-D
J2-Shield 		Twisted Pair CTS
Not Used
J1-Shield
J1-Shield 		J2-Shield
J2-Shield 		Twisted Pair Not Used
Not Used
J1-Shield J2-Shield Single Not Used

1 Any pin not referenced on a connector is not connected.

If the system's serial port is labeled with V2, as shown in Figure A-4, then for optimum performance, use the version of the cable with the part number ending in -02: 72-0671-02 (DTE).

h1483.gif

Figure A-4 : Serial Port Labeled V2


X.21

Figure A-5 shows the X.21 cable assembly, and Table A-6 lists the cable pinout.

h1029.gif

Figure A-5 : X.21 Cable Assembly

Table A-6 : X.21 DTE Serial Cable Pinouts and Signal Descriptions

72-0683-02 Connections1
From Signal Type To Signal
J1-5 MUX SEL J1-38 GND
J1-36 449 GND J2-8 X.21 GND
J1-41
J1-25 		449 DTR Jumper J1-6
J1-22 		449 CTS
J1-41
J1-25 		449 DTR Jumper J1-8
J1-24 		449 DSR
J1-43
J1-27 		449 SCTE Jumper J1-37
J1-21 		449 SCR
J1-1
J1-34 		449 TXD Twisted Pair J2-2
J2-9 		X.21 TXD
J1-4
J1-20 		449 RTS Twisted Pair J2-3
J2-10 		X.21 CTL
J1-35
J1-19 		449 RXD Twisted Pair J2-4
J2-11 		X.21 RXD
J1-10
J1-26 		449 RLSD Twisted Pair J2-5
J2-12 		X.21 IND
J1-2
J1-18 		449 SCT Twisted Pair J2-6
J2-13 		X.21 CLK

1 Any pin not referenced on a connector is not connected.


EIA-530

Figure A-6 shows the EIA-530 cable assembly, and Table A-7 lists the cable pinouts and signal descriptions.

h1026.gif

Figure A-6 : EIA-530 Cable Assembly

Table A-7 : EIA-530 DTE Serial Cable Pinouts and Signal Descriptions

72-0732-01 Connections
50 Pin1 Signal Name Direction 25 Pin Type
J1-5
J1-38 		Looped NC Jumper
J1-1
J1-34 		TXD+
TXD- 		J2-2
J2-14 		Twisted Pair
J1-35
J1-19 		RXD+
RXD- 		J2-3
J2-16 		Twisted Pair
J1-4
J1-20 		RTS+
RTS- 		J2-4
J2-19 		Twisted Pair
J1-6
J1-22 		CTS+
CTS- 		J2-5
J2-13 		Twisted Pair
J1-10
J1-26 		RLSD+ (RR+)
RLSD- (RR-) 		J2-8
J2-10 		Twisted Pair
J1-2
J1-18 		SCT+
SCT- 		J2-15
J2-12 		Twisted Pair
J1-37
J1-21 		SCR+
SCR- 		J2-17
J2-9 		Twisted Pair
J1-43
J1-27 		SCTE+ (TT+)
SCTE- (TT-) 		J2-24
J2-11 		Twisted Pair
J1-7 LL J2-18 Twisted Pair
J1-48
J1-36 		Ground J2-23
J2-7 		Twisted Pair
J1-15 Shield J2-1 Single Wire
J1-8
J1-24 		DCE Ready
Ground 		J2-6
J2-23 		Twisted Pair
J1-41 DTE Ready J2-20 Twisted Pair

1 Any pin not referenced on a connector is not connected.


Ethernet Cable Pinouts

Figure A-7 shows the Ethernet (AUI) cable assembly, and Table A-8 lists the cable pinout.

h1031.gif

Figure A-7 : Ethernet Cable Assembly

Table A-8 : Ethernet Cable Pinouts and Signal Descriptions

Pin1 Ethernet Circuit Signal Name
1 CI-S Control In Circuit Shield
2 CI-A Control In Circuit A
3 DO-A Data Out Circuit A
4 DI-S Data In Circuit Shield (Jumper L23 and M23)
5 DI-A Data In Circuit A
6 VC Voltage Common
7 CO-A Control Out Circuit A (not connected)
8 CO-S Control Out Circuit Shield (not connected)
9 CI-B Control In Circuit B
10 DO-B Data Out Circuit B
11 DO-S Data Out Circuit Shield (Jumper L24 and M24)
12 DI-B Data In Circuit B
13 VP Voltage Plus
14 VS Voltage Shield (L25 and M25)
15 CO-B Control Out Circuit B (not connected)
Shell PG Protective Ground

1 Any pin not referenced on a connector is not connected.


Token Ring Port Pinout (DB-9)

Table A-9 lists the Token Ring port pinout.

Table A-9 : Token Ring Port Pinout (DB-9)

9-Pin Signal
1 --RX
2 NC1
3 NC
4 NC
5 --TX
6 +RX
7 NC
8 NC
9 +TX

1 NC stands for not connected.

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