T1 CSU and T1 DSU/CSU Interface Connectors
B-5
3000-A2-GA31-D0
July 1999
COM Port Interface
The COM port connects to either a personal computer
(PC) or an async terminal and printer:
The PC connection uses the:
•
COM port-to-PC cable. This cable is a 14-foot,
26 AWG, 8-conductor cable with an 8-position
modular plug keyed connector and a DB9 socket
connector (see Figure B-4).
•
COM port connector with a plastic body adapter for
converting a DB25 interface to an 8-pin modular
jack (see Figures B-5 and B-6). This connector is
used in conjunction with the COM port adapter
cable.
1
2
3
4
5
6
7
8
496-14153-03
8-Position
Modular
Plug Keyed
RX Data
Ground
TX Data
DTR
CD
RTS
2
5
3
4
1
8
6
7
RX Data
Ground
TX Data
DTR
CD
CTS
DSR
RTS
DB9
Socket
No
Connection
No
Connection
Figure B-4. COM Port-to-PC Cable
1
2
3
4
5
6
7
8
15
3
7
2
20
8
4
17
TX CLK
RX Data
Ground
TX Data
DTR
CD
RTS
RX CLK
Plug
DB25 Type
8-Pin Keyed
Modular Jack
Pin
Number
Pin
Number
496-14401-01
Figure B-5. COM Port-to-PC Adapter
496-14418-01
Carrier
Connection
PC Connection
COM Port
Adapter
Figure B-6. COM Port Adapter
Summary of Contents for Compshere 3000 Series
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