Serial Cable Assemblies and Pinouts The following illustrations and tables provide assembly drawings and pinouts for the EIA-530 DCE, and EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables. EIA-530 Figure D-1 shows the EIA-530 serial cable assembly, and Table D-3 lists the pinouts. Figure D-1. EIA-530 Serial Cable Assembly Arrows indicate signal direction: indicates DTE to DCE, and indicates DCE to DTE. Table D-3. EIA-530 DTE Cable Pinout (DB-60 to DB-25) | 60 Pin [1] | Signal | 25 Pin | Signal | Direction DTE DCE [2] | | J1-11 | TxD/RxD+ | J2-2 | BA(A), TxD+ | | | J1-12 | TxD/RxD “ | J2-14 | BA(B), TxD- | | | J1-28 | RxD/TxD+ | J2-3 | BB(A), RxD+ | | | J1-27 | RxD/TxD “ | J2-16 | BB(B), RxD- | | | J1-9 | RTS/CTS+ | J2-4 | CA(A), RTS+ | | | J1-10 | RTS/CTS- | J2-19 | CA(B), RTS- | | | J1-1 | CTS/RTS+ | J2-5 | CB(A), CTS+ | | | J1-2 | CTS/RTS- | J2-13 | CB(B), CTS- | | | J1-3 | DSR/DTR+ | J2-6 | CC(A), DSR+ | | | J1-4 | DSR/DTR- | J2-22 | CC(B), DSR- | | | J1-46 | Shield_GND | J2-1 | Shield | Shorted | | J1-47 | MODE_2 | - | - | | | J1-48 | GND | - | - | Shorted | | J1-49 | MODE_1 | - | - | | | J1-5 | DCD/DCD+ | J2-8 | CF(A), DCD+ | | | J1-6 | DCD/DCD- | J2-10 | CF(B), DCD- | | | J1-24 | TxC/RxC+ | J2-15 | DB(A), TxC+ | | | J1-23 | TxC/RxC- | J2-12 | DB(B), TxC- | | | J1-26 | RxC/TxCE+ | J2-17 | DD(A), RxC+ | | | J1-25 | RxC/TxCE- | J2-9 | DD(B), RxC- | | | J1-44 | LL/DCD | J2-18 | LL | | | J1-45 | Circuit_GND | J2-7 | Circuit_ GND | - | | J1-7 | DTR/DSR+ | J2-20 | CD(A), DTR+ | | | J1-8 | DTR/DSR- | J2-23 | CD(B), DTR- | | | J1-13 | TxCE/TxC+ | J2-24 | DA(A), TxCE+ | | | J1-14 | TxCE/TxC “ | J2-11 | DA(B), TxCE “ | | [1] Any pin not referenced is not connected. [2] The EIA-530 interface cannot be operated in DCE mode. A DCE cable is not available for the EIA-530 interface. EIA/TIA-232 Figure D-2 shows the EIA/TIA-232 cable assembly; Table D-4 lists the DTE pinout; and Table D-5 lists the DCE pinout. Arrows indicate signal direction: indicates DTE to DCE, and indicates DCE to DTE. Figure D-2. EIA/TIA-232 Cable Assembly Table D-4. EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25) | 60 Pin [1] | Signal | Description | Direction | 25 Pin | Signal | | J1-50 | MODE_0 | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-52 | MODE_DCE | Shorting group | - | - | - | | J1-46 | Shield GND | Single | - | J2-1 | Shield GND | | J1-41 | TxD/RxD | Twisted pair no. 5 | | J2-2 | TxD | | Shield | - | | | Shield | - | | J1-36 | RxD/TxD | Twisted pair no. 9 | | J2-3 | RxD | | Shield | - | | - | Shield | - | | J1-42 | RTS/CTS | Twisted pair no. 4 | | J2-4 | RTS | | Shield | - | | - | Shield | - | | J1-35 | CTS/RTS | Twisted pair no. 10 | | J2-5 | CTS | | Shield | - | | - | Shield | - | | J1-34 | DSR/DTR | Twisted pair no. 11 | | J2-6 | DSR | | Shield | - | | - | Shield | - | | J1-45 | Circuit GND | Twisted pair no. 1 | - | J2-7 | Circuit GND | | Shield | - | | - | Shield | - | | J1-33 | DCD/LL | Twisted pair no. 12 | | J2-8 | DCD | | Shield | - | | - | Shield | - | | J1-37 | TxC/NIL | Twisted pair no. 8 | | J2-15 | TxC | | Shield | - | | - | Shield | - | | J1-38 | RxC/TxCE | Twisted pair no. 7 | | J2-17 | RxC | | Shield | - | | - | Shield | - | | J1-44 | LL/DCD | Twisted pair no. 2 | | J2-18 | LTST | | Shield | - | | - | Shield | - | | J1-43 | DTR/DSR | Twisted pair no. 3 | | J2-20 | DTR | | Shield | - | - | Shield | - | | | J1-39 | TxCE/TxC | Twisted pair no. 6 | | J2-24 | TxCE | | Shield | - | | - | Shield | - | [1] Any pin not referenced is not connected. Table D-5. EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25) | 60 Pin [1] | Signal | Description | Direction | 25 Pin | Signal | | J1-50 | MODE_0 | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-46 | Shield GND | Single | - | J2-1 | Shield GND | | J1-36 | RxD/TxD | Twisted pair no. 9 | | J2-2 | TxD | | Shield | - | | - | Shield | - | | J1-41 | TxD/RxD | Twisted pair no. 5 | | J2-3 | RxD | | Shield | - | | - | Shield | - | | J1-35 | CTS/RTS | Twisted pair no. 10 | | J2-4 | RTS | | Shield | - | | - | Shield | - | | J1-42 | RTS/CTS | Twisted pair no. 4 | | J2-5 | CTS | | Shield | - | | - | Shield | - | | J1-43 | DTR/DSR | Twisted pair no. 3 | | J2-6 | DSR | | Shield | - | | - | Shield | - | | J1-45 | Circuit GND | Twisted pair no. 1 | - | J2-7 | Circuit GND | | Shield | - | | - | Shield | | | J1-44 | LL/DCD | Twisted pair no. 2 | | J2-8 | DCD | | Shield | - | | - | Shield | - | | J1-39 | TxCE/TxC | Twisted pair no. 7 | - | J2-15 | TxC | | Shield | - | | - | Shield | - | | J1-40 | NIL/RxC | Twisted pair no. 6 | | J2-17 | RxC | | Shield | - | | - | Shield | - | | J1-33 | DCD/LL | Twisted pair no. 12 | | J2-18 | LTST | | Shield | - | | - | Shield | - | | J1-34 | DSR/DTR | Twisted pair no. 11 | | J2-20 | DTR | | Shield | - | | - | Shield | - | | J1-38 | RxC/TxCE | Twisted pair no. 8 | | J2-24 | TxCE | | Shield | - | | - | Shield | - | [1] Any pin not referenced is not connected. EIA/TIA-449 Figure D-3 shows the EIA/TIA-449 cable assembly; Table D-6 lists the DTE pinout; Table D-7 lists the DCE pinout. Arrows indicate signal direction: indicates DTE to DCE, and indicates DCE to DTE. Figure D-3. EIA/TIA-449 Cable Assembly Table D-6. EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37) | 60 Pin [1] | Signal | Description | Direction | 37 Pin | Signal | | J1-49 | MODE_1 | Shorting group | - | - | - | | J1-48 | GND | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-52 | MODE_DCE | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | | J2-1 | Shield GND | | J1-11 | TxD/RxD+ | Twisted pair no. 6 | | J2-4 | SD+ | | J1-12 | TxD/RxD- | | | J2-22 | SD- | | J1-24 | TxC/RxC+ | Twisted pair no. 9 | | J2-5 | ST+ | | J1-23 | TxC/RxC- | | | J2-23 | ST- | | J1-28 | RxD/TxD+ | Twisted pair no. 11 | | J2-6 | RD+ | | J1-27 | RxD/TxD- | | | J2-24 | RD- | | J1-9 | RTS/CTS+ | Twisted pair no. 5 | | J2-7 | RS+ | | J1-10 | RTS/CTS- | | | J2-25 | RS- | | J1-26 | RxC/TxCE+ | Twisted pair no. 10 | | J2-8 | RT+ | | J1-25 | RxC/TxCE- | | | J2-26 | RT- | | J1-1 | CTS/RTS+ | Twisted pair no. 1 | | J2-9 | CS+ | | J1-2 | CTS/RTS- | | | J2-27 | CS- | | J1-44 | LL/DCD | Twisted pair no. 12 | | J2-10 | LL | | J1-45 | Circuit_GND | | - | J2-37 | SC | | J1-3 | DSR/DTR+ | Twisted pair no. 2 | | J2-11 | DM+ | | J1-4 | DSR/DTR- | | | J2-29 | DM- | | J1-7 | DTR/DSR+ | Twisted pair no. 4 | | J2-12 | TR+ | | J1-8 | DTR/DSR- | | | J2-30 | TR- | | J1-5 | DCD/DCD+ | Twisted pair no. 3 | | J2-13 | RR+ | | J1-6 | | | | J2-31 | RR- | | J1-13 | TxCE/TxC+ | | | J2-17 | TT+ | | J1-14 | TxCE/TxC- | Twisted pair no. 7 | | J2-35 | TT- | | J1-15 | Circuit_GND | Twisted pair no. 9 | - | J2-19 | SG | | J1-16 | Circuit_GND | | - | J2-20 | RC | [1] Any pin not referenced is not connected. Table D-7. EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37) | 60 Pin [1] | Signal | Description | Direction | 37 Pin | Signal | | J1-49 | MODE_1 | Shorting group | - | - | - “ | | J1-48 | GND | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | - | J2-1 | Shield GND | | J1-28 | RxD/TxD+ | Twisted pair no. 11 | | J2-4 | SD+ | | J1-27 | RxD/TxD- | | | J2-22 | SD- | | J1-13 | TxCE/TxC+ | Twisted pair no. 7 | | J2-5 | ST+ | | J1-14 | TxCE/TxC- | | | J2-23 | ST- | | J1-11 | TxD/RxD+ | Twisted pair no. 6 | | J2-6 | RD+ | | J1-12 | TxD/RxD- | | | J2-24 | RD- | | J1-1 | CTS/RTS+ | Twisted pair no. 1 | | J2-7 | RS+ | | J1-2 | CTS/RTS- | | | J2-25 | RS- | | J1-24 | TxC/RxC+ | Twisted pair no. 9 | | J2-8 | RT+ | | J1-23 | TxC/RxC- | | | J2-26 | RT- | | J1-9 | RTS/CTS+ | Twisted pair no. 5 | | J2-9 | CS+ | | J1-10 | RTS/CTS- | | | J2-27 | CS- | | J1-29 | NIL/LL | Twisted pair no. 12 | | J2-10 | LL | | J1-30 | Circuit_GND | | - | J2-37 | SC | | J1-7 | DTR/DSR+ | Twisted pair no. 4 | | J2-11 | DM+ | | J1-8 | DTR/DSR- | | | J2-29 | DM- | | J1-3 | DSR/DTR+ | Twisted pair no. 2 | | J2-12 | TR+ | | J1-4 | DSR/DTR- | | | J2-30 | TR- | | J1-5 | DCD/DCD+ | Twisted pair no. 3 | | J2-13 | RR+ | | J1-6 | DCD/DCD- | | | J2-31 | RR- | | J1-26 | RxC/TxCE+ | Twisted pair no. 10 | < ” | J2-17 | TT+ | | J1-25 | RxC/TxCE “ | | < ” | J2-35 | TT “ | | J1-15 | Circuit_GND | Twisted pair no. 8 | _ | J2-19 | SG | | J1-16 | Circuit_GND | | _ | J2-20 | RC | [1] Any pin not referenced is not connected. V.35 Figure D-4 shows the V.35 cable assembly; Table D-8 lists the DTE pinout; Table D-9 lists the DCE pinout. Arrows indicate signal direction: indicates DTE to DCE, and indicates DCE to DTE. Figure D-4. V.35 Cable Assembly Table D-8. V.35 DTE Cable Pinout (DB-60 to 34-Pin) | 60 Pin [1] | Signal | Description | Direction | 34 Pin | Signal | | J1-49 | MODE_1 | Shorting group | - | - | - | | J1-48 | GND | Shorting group | - | - | - | | J1-50 | MODE_0 | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-52 | MODE_DCE | Shorting group | - | - | - | | J1-53 | TxC/NIL | Shorting group | - | - | - | | J1-54 | RxC_TxCE | Shorting group | - | - | - | | J1-55 | RxD/TxD | Shorting group | - | - | - | | J1-56 | GND | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | - | J2-A | Frame GND | | J1-45 | Circuit_GND | Twisted pair no. 12 | - | J2-B | Circuit GND | | Shield | - | | - | Shield | - | | J1-42 | RTS/CTS | Twisted pair no. 9 | | J2-C | RTS | | Shield | - | | - | Shield | - | | J1-35 | CTS/RTS | Twisted pair no. 8 | | J2-D | CTS | | Shield | - | | - | Shield | - | | J1-34 | DSR/DTR | Twisted pair no. 7 | | J2-E | DSR | | Shield | - | | - | Shield | - | | J1-33 | DCD/LL | Twisted pair no. 6 | | J2-F | RLSD | | Shield | - | | - | Shield | - | | J1-43 | DTR/DSR | Twisted pair no. 10 | | J2-H | DTR | | Shield | - | | - | Shield | - | | J1-44 | LL/DCD | Twisted pair no. 11 | | J2-K | LT | | Shield | - | | - | Shield | - | | J18 | TxD/RxD+ | Twisted pair no. 1 | | J2-P | SD+ | | J17 | TxD/RxD- | | | J2-S | SD- | | J1-28 | RxD/TxD+ | Twisted pair no. 5 | | J2-R | RD+ | | J1-27 | RxD/TxD- | | | J2-T | RD- | | J1-20 | TxCE/TxC+ | Twisted pair no. 2 | | J2-U | SCTE+ | | J1-19 | TxCE/TxC- | | | J2-W | SCTE- | | J1-26 | RxC/TxCE+ | Twisted pair no. 4 | | J2-V | SCR+ | | J1-25 | RxC/TxCE- | | | J2-X | SCR- | | J1-24 | TxC/RxC+ | Twisted pair no. 3 | | J2-Y | SCT+ | | J1-23 | TxC/RxC- | | | J2-AA | SCT- | [1] Any pin not referenced is not connected. Table D-9. V.35 DCE Cable Pinout (DB-60 to 34-Pin) | 60 Pin [1] | Signal | Description | Direction | 34 Pin | Signal | | J1-49 | MODE_1 | Shorting group | - | - | - | | J1-48 | GND | Shorting group | - | - | - | | J1-50 | MODE_0 | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-53 | TxC/NIL | Shorting group | - | - | - | | J1-54 | RxC_TxCE | Shorting group | - | - | - | | J1-55 | RxD/TxD | Shorting group | - | - | - | | J1-56 | GND | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | - | J2-A | Frame GND | | J1-45 | Circuit_GND | Twisted pair no. 12 | - | J2-B | Circuit GND | | Shield | - | | - | Shield | - | | J1-35 | CTS/RTS | Twisted pair no. 8 | | J2-C | RTS | | Shield | - | | - | Shield | - | | J1-42 | RTS/CTS | Twisted pair no. 9 | | J2-D | CTS | | Shield | - | | - | Shield | - | | J1-43 | DTR/DSR | Twisted pair no. 10 | | J2-E | DSR | | Shield | - | | - | Shield | - | | J1-44 | LL/DCD | Twisted pair no. 11 | | J2-F | RLSD | | Shield | - | | - | Shield | - | | J1-34 | DSR/DTR | Twisted pair no. 7 | | J2-H | DTR | | Shield | - | | - | Shield | - | | J1-33 | DCD/LL | Twisted pair no. 6 | | J2-K | LT | | Shield | - | | - | Shield | - | | J1-28 | RxD/TxD+ | Twisted pair no. 5 | | J2-P | SD+ | | J1-27 | RxD/TxD- | | | J2-S | SD- | | J1-18 | TxD/RxD+ | Twisted pair no. 1 | | J2-R | RD+ | | J1-17 | TxD/RxD- | | | J2-T | RD- | | J1-26 | RxC/TxCE+ | Twisted pair no. 4 | | J2-U | SCTE+ | | J1-25 | RxC/TxCE- | | | J2-W | SCTE- | | J1-22 | NIL/RxC+ | Twisted pair no. 3 | | J2-V | SCR+ | | J1-21 | NIL/RxC- | | | J2-X | SCR- | | J1-20 | TxCE/TxC+ | Twisted pair no. 2 | | J2-Y | SCT+ | | J1-19 | TxCE/TxC- | | | J2-AA | SCT- | [1] Any pin not referenced is not connected. X.21 Figure D-5 shows the X.21 cable assembly; Table D-10 lists the DTE pinout; Table D-11 lists the DCE pinout. Arrows indicate signal direction: indicates DTE to DCE, and indicates DCE to DTE. Figure D-5. X.21 Cable Assembly Table D-10. X.21 DTE Cable Pinout (DB-60 to DB-15) | 60 Pin [1] | Signal | Description | Direction | 15 Pin | Signal | | J1-48 | GND | Shorting group | - | - | - | | J1-47 | MODE_2 | Shorting group | - | - | - | | J1-51 | GND | Shorting group | - | - | - | | J1-52 | MODE_DCE | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | - | J2-1 | Shield GND | | J1-11 | TxD/RxD+ | Twisted pair no. 3 | | J2-2 | Transmit+ | | J1-12 | TxD/RxD- | | | J2-9 | Transmit- | | J1-9 | RTS/CTS+ | Twisted pair no. 2 | | J2-3 | Control+ | | J1-10 | RTS/CTS- | | | J2-10 | Control- | | J1-28 | RxD/TxD+ | Twisted pair no. 6 | | J2-4 | Receive+ | | J1-27 | RxD/TxD- | | | J2-11 | Receive- | | J1-1 | CTS/RTS+ | Twisted pair no. 1 | | J2-5 | Indication+ | | J1-2 | CTS/RTS- | | | J2-12 | Indication- | | J1-26 | RxC/TxCE+ | Twisted pair no. 5 | | J2-6 | Timing+ | | J1-25 | RxC/TxCE- | | | J2-13 | Timing- | | J1-15 | Control_GND | Twisted pair no. 4 | - | J2-8 | Control GND | | Shield | - | | - | Shqield | - | [1] Any pin not referenced is not connected. Table D-11. X.21 DCE Cable Pinout (DB-60 to DB-15) | 60 Pin [1] | Signal | Description | Direction | 15 Pin | Signal | | J1-48 | GND | Shorting group | - | - | - | | J1-47 | MODE_2 | Shorting group | - | - | - | | J1-46 | Shield_GND | Single | - | J2-1 | Shield GND | | J1-28 | RxD/TxD+ | Twisted pair no. 6 | | J2-2 | Transmit+ | | J1-27 | RxD/TxD- | | | J2-9 | Transmit- | | J1-1 | CTS/RTS+ | Twisted pair no. 1 | | J2-3 | Control+ | | J1-2 | CTS/RTS- | | | J2-10 | Control- | | J1-11 | TxD/RxD+ | Twisted pair no. 3 | | J2-4 | Receive+ | | J1-12 | TxD/RxD “ | | | J2-11 | Receive- | | J1-9 | RTS/CTS+ | Twisted pair no. 2 | | J2-5 | Indication+ | | J1-10 | RTS/CTS- | | | J2-12 | Indication- | | J1-24 | TxC/RxC+ | Twisted pair no. 4 | | J2-6 | Timing+ | | J1-23 | TxC/RxC- | | | J2-13 | Timing- | | J1-15 | Control_GND | Twisted pair no. 5 | - | J2-8 | Control GND | | Shield | - | | - | Shield | - | [1] Any pin not referenced is not connected. |