B-2
Cable Applications
90453-02 Rev A0
Standard Asynchronous RS-232 Cables
Figure B-1. RS-232 Straight-Through Cables
NetBlazer (DB-9)
5
3
2
7
8
6
1
4
9
Modem (DB-25)
7
2
3
4
5
6
8
20
22
Signal Ground
Transmitted Data (TD)
Received Data (RD)
Request to Send (RTS)
Clear to Send (CTS)
Data Set Ready (DSR)
Data Carrier Detected (DCD)
Data Terminal Ready (DTR)
Ring Indicator (RI)
NetBlazer (DB-25)
7
2
3
4
5
6
8
20
22
Modem (DB-25)
7
2
3
4
5
6
8
20
22
Signal Ground
Transmitted Data (TD)
Received Data (RD)
Request to Send (RTS)
Clear to Send (CTS)
Data Set Ready (DSR)
Data Carrier Detected (DCD)
Data Terminal Ready (DTR)
Ring Indicator (RI)
1
1
Chassis Ground
DB-9 to DB-25 RS-232 Cable
DB-25 to DB-25 RS-232 Cable
Book Page 2 Thursday, March 27, 1997 10:55 AM
