
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 247
Pin Rev. A Function Rev. D Function
1 DCD (Data Carrier Detect) DCD3 (COM3 Data Carrier Detect)
2 RXD (COM3 Receive Data) RXD (COM3 Receive Data)
3 TXD (COM3 Transmit Data) TXD (COM3 Transmit Data)
4 +12 VDC (Power) — emulates DTR +12 VDC (Power) — emulates DTR
5 GND (Ground) GND (Ground)
6 NC (Not connected) NC (Not connected)
7 RTS (Request To Send), not supported
by ZENOSOFT
RTS (Request To Send), not supported
by ZENOSOFT
8 CTS (Clear To Send) CTS (Clear To Send)
9 DCD (Same as Pin 1) RI (Ring Indicator)
13.5.2. AUXILIARY SERIAL PORT
The Auxiliary Serial Port provides access to all three COM ports according to specific port types. It uses
a male DB-25 connector wired as follows:
Figure 13-8. Auxiliary Serial Port Male DB-25 Connector.
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