Sun Microsystems SPARCengine Ultra AXi - Serial Port Channels a and B

Appendix A Jumpers, Headers, Connectors, and Adapters A-27
A.4.2 Serial Port Channels A and B
TABLE A-27 shows the signals on the two 25-pin connectors when using a “Y” cable to
separate serial channels A and B. See Appendix A.3.10 for serial connector pinouts.
The splitter cable is available from Y.C. Cable USA, Inc., 4568 Enterprise Street,
Fremont, CA 94538, part number DB25F-2M10
.
TABLE A-27 25-Pin Serial Channel A and B Connectors (Y Cable)
Pin A Signal Name Pin A Signal Name Pin B Signal Name Pin B Signal Name
1 NC 14 NC 1 NC 14 NC
2 TXD-A 15 TRXC-A 2 TXD-B 15 TRXC-B
3 RXD-A 16 NC 3 RXD-B 16 NC
4 RTS-A 17 RXC-A 4 RTS-B 17 RXC-B
5 CTS-A 18 NC 5 CTS-B 18 NC
6 SYNC-A 19 NC 6 SYNC-B 19 NC
7 Ground 20 DTR-A 7 Ground 20 DTR-B
8 DCD-A 21 NC 8 DCD-B 21 NC
9 NC 22 NC 9 NC 22 NC
10 NC 23 NC 10 NC 23 NC
11 NC 24 TXC-A 11 NC 24 TXC-B
12 NC 25 NC 12 NC 25 NC
13 NC Metal
Shell
Chassis
Ground
13 NC Metal
Shell
Chassis
Ground
1
14
AB
1
14
13
25
13
25
I/O Panel Connector