Connectors and Cables
2-17
RS-232 to RS-232 DCE Cable
This straight-through cable connects the RS-232 port on a SuperStack II
bridge/router to a standard RS-232 DCE device.
Figure 2-14 shows the pin assignments of the RS-232 cable.
Figure 2-14
RS-232 Straight-Through Cable
3Com does not sell this cable.
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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
Name Abbr Pin Pin Abbr Name
25-pin male connector
25-pin male connector
Shield
Transmit Data
Receive Data
Request to Send
Clear to Send
DCE Ready
Signal Ground
Carrier Detect
Transmit Clock
Receive Clock
DTE Ready
Remote Loopback
Ring Indicator
Transmit Clock (DTE Source)
Test Mode
Shield
Transmit Data
Receive Data
Request to Send
Clear to Send
DCE Ready
Signal Ground
Carrier Detect
Transmit Clock
Receive Clock
DTE Ready
Remote Loopback
Ring Indicator
Transmit Clock (DTE Source)
Test Mode
Chassis GND
TxD
RxD
RTS
CTS
DSR
GND
CD
TxC (SCT)
RxC (SCR)
DTR
RL
RI
TT (SCTE)
TM
Chassis GND
TxD
RxD
RTS
CTS
DSR
GND
CD
TxC (SCT)
RxC (SCR)
DTR
RL
RI
TT (SCTE)
TM
1
2
3
4
5
6
7
8
15
17
20
21
22
24
25
1
2
3
4
5
6
7
8
15
17
20
21
22
24
25
To RS-232 port on bridge/router
To modem/TA or CSU/DSU
SS2TRHWBook Page 17 Monday, May 5, 1997 3:11 PM
Содержание NETBuilder
Страница 8: ...viii SS2TRHWBook Page viii Monday May 5 1997 3 11 PM ...
Страница 10: ...2 CHAPTER ABOUT THIS GUIDE SS2TRHWBook Page 2 Monday May 5 1997 3 11 PM ...
Страница 44: ...2 22 CHAPTER 2 OVERVIEW SS2TRHWBook Page 22 Monday May 5 1997 3 11 PM ...
Страница 48: ...3 4 CHAPTER 3 UPGRADING MEMORY SS2TRHWBook Page 4 Monday May 5 1997 3 11 PM ...
Страница 64: ...A 10 APPENDIX A PROVISIONING YOUR ISDN LINE SS2TRHWBook Page 10 Monday May 5 1997 3 11 PM ...
Страница 70: ...SS2TRHWBook Page 6 Monday May 5 1997 3 11 PM ...
Страница 74: ...4 INDEX SS2TRHWBook Page 4 Monday May 5 1997 3 11 PM ...