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PollCat NetLink II - User’s Guide
B. Description of System Interfaces
B.1. Serial PBX Input Port (DB9 Male; DTE)
Pin Signal
1 Not Connected
2 Receive Data (In)
3 Transmit Data (Out)
4 DTR (Data Terminal Ready) (Out) (Held High)
5 Signal Ground
6 Not Connected
7 RTS (Request to Send) (Out)
8 CTS (Clear to Send) (In) (May Be Left Open)
9 Not Connected
TO PBXNETLINK II
X
X
X
X
X
X
2
3
7
5
8
PORT
DATA
LED
(Refer to PBX
User’s Guide)
DATA IN
DATA OUT
RTS
4DTR
GROUND
CTS
Figure B.1: Serial PBX Input Port Interface
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