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CB-DB9-Y
Accessories and Extras
$9
DB-9 Y Cable
The CB-DB9-Y cable separates pins of the DB9 header so more than one UART can be connected at a time.
CB-DB9-Y Pin Out:
Below is a connection layout for the CB-DB9-Y, with the main female DB9-Y in the center and the split connectors A and B on either side. DB9-A is a straight through connection whereas DB9-B has pins 2 and 3 connected with 7 and 8 of DB9-Y and pins 7 and 8 not connected.
DB9-A DB9-Y DB9-B 1 ------- 1 ------- 1 2 ------- 2 ------- 8 3 ------- 3 ------- 7 4 ------- 4 ------- 4 5 ------- 5 ------- 5 6 ------- 6 ------- 6 7 ------- 7 ------- 3 8 ------- 8 ------- 2 9 ------- 9 ------- 9
Note: Typical PC NULL Modem cables will ground unused signals, which can interfere with the Rx and Tx signals on the opposite side of the Y cable (see pins in red above).
For more information, see the cb-db9-y.pdf datasheet.
Various DB9 Header Pin Functions:
============= 1\\+ + + + +//5 6 \\+ + + +// 9 ========= DB9 HEADER
Pin # | TS-752 | TS-7552 & TS-7553 | TS-8200 |
---|---|---|---|
1 | 485_X+ | 485_X+ | 485_X+ |
2 | Console_RXD | UART1_RXD | DEBUG_RXD |
3 | Console_TXD | UART1_TXD | DEBUG_TXD |
4 | N/C | CAN_H | CAN_H |
5 | GND | GND | GND |
6 | 485_X- | 485_X- | 485_X- |
7 | DIO5_TXD2 | UART2_TXD | UART1_TXD |
8 | DIO6_RXD2 | UART2_RXD | UART1_RXD |
9 | N/C | CAN_L | CAN_L |