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P
IN
A
SSIGNMENTS
B-2
DB-9 Port Pin Assignments
Console Port to 9-Pin COM Port on PC
Console Port to 25-Pin DCE Port on Modem
EIA
Circuit
CCITT
Signal
Description
Switch’s
DB9 DTE
Pin #
PC DB9
DTE
Pin #
Modem
DB25
DCE Pin #
Signal
Direction
DTE-DCE
CF
109
DCD
(Data Carrier Detected)
1
1
8
<------
BB
104
RxD
(Received Data)
2
2
3
<------
BA
103
TxD
(Transmitted Data)
3
3
2
------>
CD
108.2
DTR
(Data Terminal Ready)
4
4
20
------>
AB
102
SG
(Signal Ground)
5
5
7
-------
CC
107
DSR
(Data Set Ready)
6
6
6
<------
CA
105
RTS
(Request-to-Send)
7
7
4
------>
CB
106
CTS
(Clear-to-Send)
8
8
5
<------
CE
125
RI
(Ring Indicator)
9
9
22
<------
Switch’s 9-Pin
Serial Port
CCITT Signal
PC’s 9-Pin
COM Port
1 DCD
----------- DCD ------------
1
2 RXD
<--------- TXD ------------
3
3 TXD
----------- RXD ---------->
2
4 DTR
----------- DSR ---------->
6
5 SGND
----------- SGND ----------
5
6 DSR
----------- DTR ------------
4
7 RTS
----------- CTS ----------->
8
8 CTS
<--------- RTS -------------
7
9 RI
----------- RI ---------------
9
Switch’s 9-Pin
Serial Port
CCITT Signal
Modem’s 25-Pin
DCE Port
1
<--------- DCD ------------
8
2
<--------- RXD ------------
3
3
----------- TXD ---------->
2
4
----------- DTR ---------->
20
5
----------- SGND ----------
7
6
<--------- DSR ------------
6
7
----------- RTS ----------->
4
8
<--------- CTS -------------
5
9
<--------- RI ---------------
22
Summary of Contents for TigerSwitch SMC6948L2
Page 2: ......
Page 16: ...SWITCH MANAGEMENT 1 6...
Page 82: ...USING THE SYSTEM CONFIGURATION PROGRAM 2 66...
Page 86: ...WEB BASED MANAGEMENT 3 4 changes by pressing the browser s refresh button...
Page 136: ...WEB BASED MANAGEMENT 3 54...
Page 148: ...ADVANCED TOPICS 4 12...
Page 152: ...TROUBLESHOOTING A 4...
Page 156: ...PIN ASSIGNMENTS B 4...
Page 164: ...INDEX Index 4...
Page 165: ......