Cables
B-4
Serial Port Pin Assignments
The DB-9 serial port on the rear panel is used to connect the CheetahAccess
Internet Gateway to an ISDN TA or PSTN modem. The pin assignments used to
connect to this port are provided in the following tables.
Figure B-2. DB-9 Serial Port Pin Numbers
DB-9 Port Pin Assignments
EIA
Circuit
CCITT
Signal
Description
Gateway’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
<------
Summary of Contents for CheetahAccess AC-IG1004
Page 1: ...CheetahAccessTM Internet Gateway AC IG1004 AC IG1008 User Guide...
Page 2: ......
Page 10: ...Contents iv...
Page 14: ...Introduction 1 4...
Page 22: ...Installation 2 8...
Page 24: ...Configuring Client PCs 3 2...
Page 42: ...Configuring the CheetahAccess Internet Gateway 4 18...
Page 77: ...Configuring Printer Services 6 7 7 Select Properties option and click Configure Port...
Page 82: ...Configuring Printer Services 6 12...
Page 94: ...Ordering Information D 2...
Page 95: ......
Page 96: ...AC IG0004 AC IG0008 E022002 R01 P N 650 10551...