Table Of Contents
Cable Specifications
Console and Auxiliary Port Signals and Pinouts
Identifying a Roll-Over Cable
Console Port Signals and Pinouts
Auxiliary Port Signals and Pinouts
Ethernet Cable Assembly and Pinouts
Token Ring Port Pinouts
Synchronous Serial Cable Assemblies and Pinouts
EIA-530
EIA/TIA-232
EIA/TIA-449
V.35
X.21
ISDN BRI Port and Cable Pinouts
Cable Specifications
This appendix provides the following pinout information:
•
Console and Auxiliary Port Signals and Pinouts
•Ethernet Cable Assembly and Pinouts
•Token Ring Port Pinouts
•Synchronous Serial Cable Assemblies and Pinouts
•ISDN BRI Port and Cable Pinouts
Note All pins not listed in the tables in this appendix are not connected.
If you prefer to order cables, refer to the section "Obtaining Service and Support" in the "Overview of the Router" chapter for information about how to contact service.
Console and Auxiliary Port Signals and Pinouts
Your router comes with a console and auxiliary cable kit, which contains the cable and adapters you need to connect a console terminal (an ASCII terminal or PC running terminal emulation software) or modem to your router. The console and auxiliary cable kit includes the following items:
•RJ-45-to-RJ-45 roll-over cable. (See the next section, "Identifying a Roll-Over Cable," for more information.)
•RJ-45-to-DB-9 female DTE adapter (labeled "TERMINAL").
•RJ-45-to-DB-25 female DTE adapter (labeled "TERMINAL").
•RJ-45-to-DB-25 male DCE adapter (labeled "MODEM").
For console connections, proceed to the section "Console Port Signals and Pinouts" later in this appendix; for modem connections, proceed to the section "Auxiliary Port Signals and Pinouts" later in this appendix.
Identifying a Roll-Over Cable
You can identify a roll-over cable by comparing the two modular ends of the cable. Holding the cables side-by-side, with the tab at the back, the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug. (See .) If your cable came from Cisco Systems, pin 1 will be white on one connector, and pin 8 will be white on the other (a roll-over cable reverses pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).
Figure C-1 Identifying a Roll-Over Cable
Console Port Signals and Pinouts
Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-9 female DTE adapter (labeled "TERMINAL") to connect the console port to a PC running terminal emulation software. shows how to connect the console port to a PC. lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-9 female DTE adapter (labeled "TERMINAL").
Figure C-2 Connecting the Console Port to a PC
Table C-1 Console Port Signaling and Cabling Using a DB-9 Adapter
Console
Port (DTE)
|
RJ-45-to-RJ-45
Roll-Over Cable
|
RJ-45-to-DB-9
Terminal Adapter
|
Console
Device
|
Signal
|
RJ-45 Pin
|
RJ-45 Pin
|
DB-9 Pin
|
Signal
|
RTS
|
11
|
8
|
8
|
CTS
|
DTR
|
2
|
7
|
6
|
DSR
|
TxD
|
3
|
6
|
2
|
RxD
|
GND
|
4
|
5
|
5
|
GND
|
GND
|
5
|
4
|
5
|
GND
|
RxD
|
6
|
3
|
3
|
TxD
|
DSR
|
7
|
2
|
4
|
DTR
|
CTS
|
81
|
1
|
7
|
RTS
|
Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 female DTE adapter (labeled "TERMINAL") to connect the console port to a terminal. shows how to connect the console port to a terminal. lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 female DTE adapter (labeled "TERMINAL").
Figure C-3 Connecting the Console Port to a Terminal
Table C-2 Console Port Signaling and Cabling Using a DB-25 Adapter
Console
|
RJ-45-to-RJ-45
Roll-Over Cable
|
RJ-45-to-DB-25
Terminal Adapter
|
Console
Device
|
Signal
|
RJ-45 Pin
|
RJ-45 Pin
|
DB-25 Pin
|
Signal
|
RTS
|
12
|
8
|
5
|
CTS
|
DTR
|
2
|
7
|
6
|
DSR
|
TxD
|
3
|
6
|
3
|
RxD
|
GND
|
4
|
5
|
7
|
GND
|
GND
|
5
|
4
|
7
|
GND
|
RxD
|
6
|
3
|
2
|
TxD
|
DSR
|
7
|
2
|
20
|
DTR
|
CTS
|
81
|
1
|
4
|
RTS
|
Auxiliary Port Signals and Pinouts
Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 male DCE adapter (labeled "MODEM") to connect the auxiliary port to a modem. shows how to connect the auxiliary port to a modem. lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 male DCE adapter (labeled "MODEM").
Figure C-4 Connecting the Auxiliary Port to a Modem
Table C-3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
Auxiliary
Port (DTE)
|
RJ-45-to-RJ-45
Roll-Over Cable
|
RJ-45-to-DB-25
Modem Adapter
|
Modem
|
Signal
|
RJ-45 Pin
|
RJ-45 Pin
|
DB-25 Pin
|
Signal
|
RTS
|
11
|
8
|
4
|
RTS
|
DTR
|
2
|
7
|
20
|
DTR
|
TxD
|
3
|
6
|
3
|
TxD
|
GND
|
4
|
5
|
7
|
GND
|
GND
|
5
|
4
|
7
|
GND
|
RxD
|
6
|
3
|
2
|
RxD
|
DSR
|
7
|
2
|
8
|
DCD
|
CTS
|
81
|
1
|
5
|
CTS
|
Ethernet Cable Assembly and Pinouts
This section describes the pinouts for an Ethernet AUI cable.
Figure C-5 shows an Ethernet AUI cable assembly, and lists the cable pinouts.
Figure C-5 Ethernet AUI Cable Assembly
Table C-4 Ethernet AUI Cable Pinouts (DB-15)
Pin
|
Ethernet Circuit
|
Signal
|
3
|
DO-A
|
Data Out Circuit A
|
10
|
DO-B
|
Data Out Circuit B
|
11
|
DO-S
|
Data Out Circuit Shield
|
5
|
DI-A
|
Data In Circuit A
|
12
|
DI-B
|
Data In Circuit B
|
4
|
DI-S
|
Data In Circuit Shield
|
2
|
CI-A
|
Control In Circuit A
|
9
|
CI-B
|
Control In Circuit B
|
1
|
CI-S
|
Control In Circuit Shield
|
6
|
VC
|
Voltage Common
|
13
|
VP
|
Voltage Plus
|
14
|
VS
|
Voltage Shield (L25 and M25)
|
Shell
|
PG
|
Protective Ground
|
Token Ring Port Pinouts
lists the Token Ring port pinouts. Use a Token Ring lobe cable (not included) to connect the Token Ring port to a MAU.
Table C-5 Token Ring Port (DB-9) Pinouts
|
|
Signal
|
1
|
Receive
|
3
|
+5V2
|
5
|
Transmit
|
6
|
Receive
|
9
|
Transmit
|
Synchronous Serial Cable Assemblies and Pinouts
The illustrations and tables in this section provide assembly drawings and pinouts for the EIA-530 DCE, EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables, which are used with the synchronous serial WAN port (labeled "SERIAL").
EIA-530
Figure C-6 shows the EIA-530 serial cable assembly, and lists the pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure C-6 EIA-530 Serial Cable Assembly
Table C-6 EIA-530 DTE Cable Pinouts (DB-60 to DB-25)
60 Pin
|
Signal
|
25 Pin
|
Signal
|
Direction
|
J1-11
J1-12
|
TxD/RxD+
TxD/RxD-
|
J2-2
J2-14
|
BA(A), TxD+
BA(B), TxD-
|
—>
—>
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
J2-3
J2-16
|
BB(A), RxD+
BB(B), RxD-
|
<—
<—
|
J1-9
J1-10
|
RTS/CTS+
RTS/CTS-
|
J2-4
J2-19
|
CA(A), RTS+
CA(B), RTS-
|
—>
—>
|
J1-1
J1-2
|
CTS/RTS+
CTS/RTS-
|
J2-5
J2-13
|
CB(A), CTS+
CB(B), CTS-
|
<—
<—
|
J1-3
J1-4
|
DSR/DTR+
DSR/DTR-
|
J2-6
J2-22
|
CC(A), DSR+
CC(B), DSR-
|
<—
<—
|
J1-46
J1-47
|
Shield_GND
MODE_2
|
J2-1
-
|
Shield
-
|
Shorted
|
J1-48
J1-49
|
GND
MODE_1
|
-
-
|
-
-
|
Shorted
|
J1-5
J1-6
|
DCD/DCD+
DCD/DCD-
|
J2-8
J2-10
|
CF(A), DCD+
CF(B), DCD-
|
<—
<—
|
J1-24
J1-23
|
TxC/RxC+
TxC/RxC-
|
J2-15
J2-12
|
DB(A), TxC+
DB(B), TxC-
|
<—
<—
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
J2-17
J2-9
|
DD(A), RxC+
DD(B), RxC-
|
<—
<—
|
J1-44
J1-45
|
LL/DCD
Circuit_GND
|
J2-18
J2-7
|
LL
Circuit_ GND
|
—>
-
|
J1-7
J1-8
|
DTR/DSR+
DTR/DSR-
|
J2-20
J2-23
|
CD(A), DTR+
CD(B), DTR-
|
—>
—>
|
J1-13
J1-14
|
TxCE/TxC+
TxCE/TxC-
|
J2-24
J2-11
|
DA(A), TxCE+
DA(B), TxCE-
|
—>
—>
|
J1-51
J1-52
|
GND
MODE_DCE
|
—
—
|
—
—
|
Shorted
|
EIA/TIA-232
Figure C-7 shows the EIA/TIA-232 cable assembly. lists the DTE pinouts. lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure C-7 EIA/TIA-232 Cable Assembly
Table C-7 EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25)
60 Pin
|
Signal
|
Description
|
Direction
|
25 Pin
|
Signal
|
J1-50
J1-51
J1-52
|
MODE_0
GND
MODE_DCE
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield GND
|
Single
|
-
|
J2-1
|
Shield GND
|
J1-41
Shield
|
TxD/RxD
-
|
Twisted pair no. 5
|
—>
-
|
J2-2
Shield
|
TxD
-
|
J1-36
Shield
|
RxD/TxD
-
|
Twisted pair no. 9
|
<—
-
|
J2-3
Shield
|
RxD
-
|
J1-42
Shield
|
RTS/CTS
-
|
Twisted pair no. 4
|
—>
-
|
J2-4
Shield
|
RTS
-
|
J1-35
Shield
|
CTS/RTS
-
|
Twisted pair no. 10
|
<—
-
|
J2-5
Shield
|
CTS
-
|
J1-34
Shield
|
DSR/DTR
-
|
Twisted pair no. 11
|
<—
-
|
J2-6
Shield
|
DSR
-
|
J1-45
Shield
|
Circuit GND
-
|
Twisted pair no. 1
|
-
-
|
J2-7
Shield
|
Circuit GND
-
|
J1-33
Shield
|
DCD/LL
-
|
Twisted pair no. 12
|
<—
-
|
J2-8
Shield
|
DCD
-
|
J1-37
Shield
|
TxC/NIL
-
|
Twisted pair no. 8
|
<—
-
|
J2-15
Shield
|
TxC
-
|
J1-38
Shield
|
RxC/TxCE
-
|
Twisted pair no. 7
|
<—
-
|
J2-17
Shield
|
RxC
-
|
J1-44
Shield
|
LL/DCD
-
|
Twisted pair no. 2
|
—>
-
|
J2-18
Shield
|
LTST
-
|
J1-43
Shield
|
DTR/DSR
-
|
Twisted pair no. 3
|
—>
-
|
J2-20
Shield
|
DTR
-
|
J1-39
Shield
|
TxCE/TxC
-
|
Twisted pair no. 6
|
—>
-
|
J2-24
Shield
|
TxCE
-
|
Table C-8 EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25)
60 Pin
|
Signal
|
Description
|
Direction
|
25 Pin
|
Signal
|
J1-50
J1-51
|
MODE_0
GND
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield GND
|
Single
|
-
|
J2-1
|
Shield GND
|
J1-36
Shield
|
RxD/TxD
-
|
Twisted pair no. 9
|
<—
-
|
J2-2
Shield
|
TxD
-
|
J1-41
Shield
|
TxD/RxD
-
|
Twisted pair no. 5
|
—>
-
|
J2-3
Shield
|
RxD
-
|
J1-35
Shield
|
CTS/RTS
-
|
Twisted pair no. 10
|
<—
-
|
J2-4
Shield
|
RTS
-
|
J1-42
Shield
|
RTS/CTS
-
|
Twisted pair no. 4
|
—>
-
|
J2-5
Shield
|
CTS
-
|
J1-43
Shield
|
DTR/DSR
-
|
Twisted pair no. 3
|
—>
-
|
J2-6
Shield
|
DSR
-
|
J1-45
Shield
|
Circuit GND
-
|
Twisted pair no. 1
|
-
-
|
J2-7
Shield
|
Circuit GND
|
J1-44
Shield
|
LL/DCD
-
|
Twisted pair no. 2
|
—>
-
|
J2-8
Shield
|
DCD
-
|
J1-39
Shield
|
TxCE/TxC
-
|
Twisted pair no. 7
|
—>
-
|
J2-15
Shield
|
TxC
-
|
J1-40
Shield
|
NIL/RxC
-
|
Twisted pair no. 6
|
—>
-
|
J2-17
Shield
|
RxC
-
|
J1-33
Shield
|
DCD/LL
-
|
Twisted pair no. 12
|
<—
-
|
J2-18
Shield
|
LTST
-
|
J1-34
Shield
|
DSR/DTR
-
|
Twisted pair no. 11
|
<—
-
|
J2-20
Shield
|
DTR
-
|
J1-38
Shield
|
RxC/TxCE
-
|
Twisted pair no. 8
|
<—
-
|
J2-24
Shield
|
TxCE
-
|
EIA/TIA-449
Figure C-8 shows the EIA/TIA-449 cable assembly. lists the DTE pinouts. Table C-10 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure C-8 EIA/TIA-449 Cable Assembly
Table C-9 EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37)
60 Pin
|
Signal
|
Description
|
Direction
|
37 Pin
|
Signal
|
J1-49
J1-48
|
MODE_1
GND
|
Shorting group
|
-
|
-
|
-
|
J1-51
J1-52
|
GND
MODE_DCE
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
_
|
J2-1
|
Shield GND
|
J1-11
J1-12
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 6
|
—>
—>
|
J2-4
J2-22
|
SD+
SD-
|
J1-24
J1-23
|
TxC/RxC+
TxC/RxC-
|
Twisted pair no. 9
|
<—
<—
|
J2-5
J2-23
|
ST+
ST-
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 11
|
<—
<—
|
J2-6
J2-24
|
RD+
RD-
|
J1-9
J1-10
|
RTS/CTS+
RTS/CTS-
|
Twisted pair no. 5
|
—>
—>
|
J2-7
J2-25
|
RS+
RS-
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
Twisted pair no. 10
|
<—
<—
|
J2-8
J2-26
|
RT+
RT-
|
J1-1
J1-2
|
CTS/RTS+
CTS/RTS-
|
Twisted pair no. 1
|
<—
<—
|
J2-9
J2-27
|
CS+
CS-
|
J1-44
J1-45
|
LL/DCD
Circuit_GND
|
Twisted pair no. 12
|
—>
_
|
J2-10
J2-37
|
LL
SC
|
J1-3
J1-4
|
DSR/DTR+
DSR/DTR-
|
Twisted pair no. 2
|
<—
<—
|
J2-11
J2-29
|
DM+
DM-
|
J1-7
J1-8
|
DTR/DSR+
DTR/DSR-
|
Twisted pair no. 4
|
—>
—>
|
J2-12
J2-30
|
TR+
TR-
|
J1-5
J1-6
|
DCD/DCD+
DCD/DCD-
|
Twisted pair no. 3
|
<—
<—
|
J2-13
J2-31
|
RR+
RR-
|
J1-13
J1-14
|
TxCE/TxC+
TxCE/TxC-
|
Twisted pair no. 7
|
—>
—>
|
J2-17
J2-35
|
TT+
TT-
|
J1-15
J1-16
|
Circuit_GND
Circuit_GND
|
Twisted pair no. 9
|
-
-
|
J2-19
J2-20
|
SG
RC
|
Table C-10 EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37)
60 Pin
|
Signal
|
Description
|
Direction
|
37 Pin
|
Signal
|
J1-49
J1-48
|
MODE_1
GND
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
-
|
J2-1
|
Shield GND
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 11
|
<—
<—
|
J2-4
J2-22
|
SD+
SD-
|
J1-13
J1-14
|
TxCE/TxC+
TxCE/TxC-
|
Twisted pair no. 7
|
—>
—>
|
J2-5
J2-23
|
ST+
ST-
|
J1-11
J1-12
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 6
|
—>
—>
|
J2-6
J2-24
|
RD+
RD-
|
J1-1
J1-2
|
CTS/RTS+
CTS/RTS-
|
Twisted pair no. 1
|
<—
<—
|
J2-7
J2-25
|
RS+
RS-
|
J1-24
J1-23
|
TxC/RxC+
TxC/RxC-
|
Twisted pair no. 9
|
—>
—>
|
J2-8
J2-26
|
RT+
RT-
|
J1-9
J1-10
|
RTS/CTS+
RTS/CTS-
|
Twisted pair no. 5
|
—>
—>
|
J2-9
J2-27
|
CS+
CS-
|
J1-29
J1-30
|
NIL/LL
Circuit_GND
|
Twisted pair no. 12
|
—>
-
|
J2-10
J2-37
|
LL
SC
|
J1-7
J1-8
|
DTR/DSR+
DTR/DSR-
|
Twisted pair no. 4
|
—>
—>
|
J2-11
J2-29
|
DM+
DM-
|
J1-3
J1-4
|
DSR/DTR+
DSR/DTR-
|
Twisted pair no. 2
|
<—
<—
|
J2-12
J2-30
|
TR+
TR-
|
J1-5
J1-6
|
DCD/DCD+
DCD/DCD-
|
Twisted pair no. 3
|
—>
—>
|
J2-13
J2-31
|
RR+
RR-
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
Twisted pair no. 10
|
<—
<—
|
J2-17
J2-35
|
TT+
TT-
|
J1-15
J1-16
|
Circuit_GND
Circuit_GND
|
Twisted pair no. 8
|
_
_
|
J2-19
J2-20
|
SG
RC
|
V.35
Figure C-9 shows the V.35 cable assembly. lists the DTE pinouts. Table C-12 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure C-9 V.35 Cable Assembly
Table C-11 V.35 DTE Cable Pinouts (DB-60 to 34-Pin)
60 Pin
|
Signal
|
Description
|
Direction
|
34 Pin
|
Signal
|
J1-49
J1-48
|
MODE_1
GND
|
Shorting group
|
-
|
-
|
-
|
J1-50
J1-51
J1-52
|
MODE_0
GND
MODE_DCE
|
Shorting group
|
-
|
-
|
-
|
J1-53
J1-54
J1-55
J1-56
|
TxC/NIL
RxC_TxCE
RxD/TxD
GND
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
-
|
J2-A
|
Frame GND
|
J1-45
Shield
|
Circuit_GND
-
|
Twisted pair no. 12
|
-
-
|
J2-B
Shield
|
Circuit GND
-
|
J1-42
Shield
|
RTS/CTS
-
|
Twisted pair no. 9
|
—>
-
|
J2-C
Shield
|
RTS
-
|
J1-35
Shield
|
CTS/RTS
-
|
Twisted pair no. 8
|
<—
-
|
J2-D
Shield
|
CTS
-
|
J1-34
Shield
|
DSR/DTR
-
|
Twisted pair no. 7
|
<—
-
|
J2-E
Shield
|
DSR
-
|
J1-33
Shield
|
DCD/LL
-
|
Twisted pair no. 6
|
<—
-
|
J2-F
Shield
|
RLSD
-
|
J1-43
Shield
|
DTR/DSR
-
|
Twisted pair no. 10
|
—>
-
|
J2-H
Shield
|
DTR
-
|
J1-44
Shield
|
LL/DCD
-
|
Twisted pair no. 11
|
—>
-
|
J2-K
Shield
|
LT
-
|
J1-18
J1-17
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 1
|
—>
—>
|
J2-P
J2-S
|
SD+
SD-
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 5
|
<—
<—
|
J2-R
J2-T
|
RD+
RD-
|
J1-20
J1-19
|
TxCE/TxC+
TxCE/TxC-
|
Twisted pair no. 2
|
—>
—>
|
J2-U
J2-W
|
SCTE+
SCTE-
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
Twisted pair no. 4
|
<—
<—
|
J2-V
J2-X
|
SCR+
SCR-
|
J1-24
J1-23
|
TxC/RxC+
TxC/RxC-
|
Twisted pair no. 3
|
<—
<—
|
J2-Y
J2-AA
|
SCT+
SCT-
|
Table C-12 V.35 DCE Cable Pinouts (DB-60 to 34-Pin)
60 Pin
|
Signal
|
Description
|
Direction
|
34 Pin
|
Signal
|
J1-49
J1-48
|
MODE_1
GND
|
Shorting group
|
-
|
-
|
-
|
J1-50
J1-51
|
MODE_0
GND
|
Shorting group
|
-
|
-
|
-
|
J1-53
J1-54
J1-55
J1-56
|
TxC/NIL
RxC_TxCE
RxD/TxD
GND
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
-
|
J2-A
|
Frame GND
|
J1-45
Shield
|
Circuit_GND
-
|
Twisted pair no. 12
|
-
-
|
J2-B
Shield
|
Circuit GND
-
|
J1-35
Shield
|
CTS/RTS
-
|
Twisted pair no. 8
|
<—
-
|
J2-C
Shield
|
RTS
-
|
J1-42
Shield
|
RTS/CTS
-
|
Twisted pair no. 9
|
—>
-
|
J2-D
Shield
|
CTS
-
|
J1-43
Shield
|
DTR/DSR
-
|
Twisted pair no. 10
|
—>
-
|
J2-E
Shield
|
DSR
-
|
J1-44
Shield
|
LL/DCD
-
|
Twisted pair no. 11
|
—>
-
|
J2-F
Shield
|
RLSD
-
|
J1-34
Shield
|
DSR/DTR
-
|
Twisted pair no. 7
|
<—
-
|
J2-H
Shield
|
DTR
-
|
J1-33
Shield
|
DCD/LL
-
|
Twisted pair no. 6
|
<—
-
|
J2-K
Shield
|
LT
-
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 5
|
<—
<—
|
J2-P
J2-S
|
SD+
SD-
|
J1-18
J1-17
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 1
|
—>
—>
|
J2-R
J2-T
|
RD+
RD-
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
Twisted pair no. 4
|
<—
<—
|
J2-U
J2-W
|
SCTE+
SCTE-
|
J1-22
J1-21
|
NIL/RxC+
NIL/RxC-
|
Twisted pair no. 3
|
—>
—>
|
J2-V
J2-X
|
SCR+
SCR-
|
J1-20
J1-19
|
TxCE/TxC+
TxCE/TxC-
|
Twisted pair no. 2
|
—>
—>
|
J2-Y
J2-AA
|
SCT+
SCT-
|
X.21
shows the X.21 cable assembly. lists the DTE pinouts. Table C-14 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure C-10 X.21 Cable Assembly
Table C-13 X.21 DTE Cable Pinouts (DB-60 to DB-15)
60 Pin
|
Signal
|
Description
|
Direction
|
15 Pin
|
Signal
|
J1-48
J1-47
|
GND
MODE_2
|
Shorting group
|
-
|
-
|
-
|
J1-51
J1-52
|
GND
MODE_DCE
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
-
|
J2-1
|
Shield GND
|
J1-11
J1-12
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 3
|
—>
—>
|
J2-2
J2-9
|
Transmit+
Transmit-
|
J1-9
J1-10
|
RTS/CTS+
RTS/CTS-
|
Twisted pair no. 2
|
—>
—>
|
J2-3
J2-10
|
Control+
Control-
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 6
|
<—
<—
|
J2-4
J2-11
|
Receive+
Receive-
|
J1-1
J1-2
|
CTS/RTS+
CTS/RTS-
|
Twisted pair no. 1
|
<—
<—
|
J2-5
J2-12
|
Indication+
Indication-
|
J1-26
J1-25
|
RxC/TxCE+
RxC/TxCE-
|
Twisted pair no. 5
|
<—
<—
|
J2-6
J2-13
|
Timing+
Timing-
|
J1-15
Shield
|
Control_GND
-
|
Twisted pair no. 4
|
-
-
|
J2-8
Shield
|
Control GND
-
|
Table C-14 X.21 DCE Cable Pinouts (DB-60 to DB-15)
60 Pin
|
Signal
|
Description
|
Direction
|
15 Pin
|
Signal
|
J1-48
J1-47
|
GND
MODE_2
|
Shorting group
|
-
|
-
|
-
|
J1-46
|
Shield_GND
|
Single
|
-
|
J2-1
|
Shield GND
|
J1-28
J1-27
|
RxD/TxD+
RxD/TxD-
|
Twisted pair no. 6
|
<—
<—
|
J2-2
J2-9
|
Transmit+
Transmit-
|
J1-1
J1-2
|
CTS/RTS+
CTS/RTS-
|
Twisted pair no. 1
|
<—
<—
|
J2-3
J2-10
|
Control+
Control-
|
J1-11
J1-12
|
TxD/RxD+
TxD/RxD-
|
Twisted pair no. 3
|
—>
—>
|
J2-4
J2-11
|
Receive+
Receive-
|
J1-9
J1-10
|
RTS/CTS+
RTS/CTS-
|
Twisted pair no. 2
|
—>
—>
|
J2-5
J2-12
|
Indication+
Indication-
|
J1-24
J1-23
|
TxC/RxC+
TxC/RxC-
|
Twisted pair no. 4
|
—>
—>
|
J2-6
J2-13
|
Timing+
Timing-
|
J1-15
Shield
|
Control_GND
-
|
Twisted pair no. 5
|
-
-
|
J2-8
Shield
|
Control GND
-
|
ISDN BRI Port and Cable Pinouts
lists the ISDN BRI port pinouts. The straight-through RJ-45-to-RJ-45 cable, used to connect to the ISDN BRI port, is not included.
Table C-15 BRI Port (RJ-45) Pinouts
RJ-45
|
|
|
Polarity
|
3
|
Transmit
|
Receive
|
+
|
4
|
Receive
|
Transmit
|
+
|
5
|
Receive
|
Transmit
|
-
|
6
|
Transmit
|
Receive
|
-
|
