Rs-232 To Rs-232 Direct Connect Cable - 3Com SuperStack II 32x Installation Manual

2-18 C 2: O
HAPTER VERVIEW
To RS-232 port on bridge/router
Clear to Send
Transmit Data
Receive Data
Request to Send
DCE Ready
Signal Ground
DTE Ready
Receive Clock - DCE Source
Transmit Clock - DTE Source
Secondary Receive Data

RS-232 to RS-232 Direct Connect Cable

This cable connects the RS-232 port on the bridge/router to an RS-232
port on an SNA legacy device.
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
25-pin male connector
Name Abbr Pin
Shield
Chas. GND
CTS
TxD
RxD
RTS
DSR
GND
20
DTR
17
RxC(SCR)
24
TT(SCTE)
16
SRD
Figure 2-15 RS-232 to RS-232 Direct-Connect Cable
You can order this cable from 3Com (part number 3C8132).
1
25-pin male connector
Pin
1
1
5
5
2
3
3
2
4
8
6
20
7
7
6
24
15
17
To SNA device
2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
Abbr Name
Shield
Chas. GND
CTS Clear to Send
Receive Data
RxD
Transmit Data
TxD
Carrier Detect
CD
DTE Ready
DTR
Signal Ground
GND
DCE Ready
DSR
Transmit Clock - DTE Source
TT(SCTE)
TxC(SCT) Transmit Clock - DCE Source
Receive Clock - DCE Source
RxC(SCR)