High-Density 68-Pin Cable
B-4 Communications Server Hardware Installation Guide
High-Density 68-Pin Cable
Table B-3 gives pinout information for eight straight-through RS-232 cables with a
68-pin high-density connector and eight DB-25 connectors. This cable is used on the
PortMaster 25 only.
To order this cable from Lucent, specify product code DC-8DB.
Ta b l e B - 3 High-Density 68-Pin-to-Eight DB-25 Cable–PM-25 only
Port Signal Definition
68-Pin
Connector Pin
RS-232
Cable
DSub (male)
Pin
1 RTS Request to Send 2 1 4
DTR Data Terminal Ready 36 1 20
TXD Transmit Data 3 1 2
SGND Signal Ground 37 1 7
DSR Data Set Ready 4 1 6
RXD Receive Data 38 1 3
DCD Data Carrier Detect 5 1 8
CTS Clear to Send 39 1 5
2 RTS Request to Send 6 2 4
DTR Data Terminal Ready 40 2 20
TXD Transmit Data 7 2 2
SGND Signal Ground 41 2 7
DSR Data Set Ready 8 2 6
RXD Receive Data 42 2 3
DCD Data Carrier Detect 9 2 8
CTS Clear to Send 43 2 5
3 RTS Request to Send 10 3 4
DTR Data Terminal Ready 44 3 20
TXD Transmit Data 11 3 2
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