Cable - Lucent Technologies PortMaster PM-2 Hardware Installation Manual

RS-232 Cable
RS-232 Cable
Table B-5 gives pinout information for a 25-pin RS-232 cable with two DB-25
connectors. Pins not listed have no connection.
Note – RS-232 only supports signaling at speeds up to 56Kbps. If the connected device
supports RS-423 signaling, use an RS-423 cable to obtain speeds up to 128Kbps.
This cable is not supplied, but can be ordered from Lucent. Specify product code MC-6.
Table B-5
Pin
2
3
4
5
6
7
8
15
17
20
B-10
RS-232 Cable with DB-25 Connectors
Name Definition
TXD Transmit Data
RXD Receive Data
RTS Request to Send
CTS Clear to Send
DSR Data Set Ready
SGND Signal Ground
DCD Data Carrier Detect
ST Send Timing
RT Receive Timing
DTR Data Terminal Ready
Communications Server Hardware Installation Guide
Direction
Output
Input
Output
Input
Input
Input
Input
Input
Output