
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 249
13.5.3. Revision A and Revision D, ZENO
®
-3200 Communication Wiring Setups
The three COM ports on a Revision A ZENO
®
-3200 share a common carrier
detect (DCD) line. This single DCD must be asserted before any COM port
on the ZENO
®
-3200 will respond.
The three COM ports on a Revision D ZENO
®
-3200 have independent
carrier detect (DCD) lines. Each COM port's DCD must be asserted
correctly before the ZENO
®
-3200 will respond on that port.
Connecting To COM1
Where to Connect COM1 Port
Type
Lines Required
Rev A ZENO
®
-3200 Rev D ZENO
®
-3200
Receive Data
SERIAL DATA, POWER AND GROUNDS terminal strip, pin
labeled COM1 RXD
Transmit Data
SERIAL DATA, POWER AND GROUNDS terminal strip, pin
labeled COM1 TXD
DCD AUX Serial Port Pin 8 AUX Serial Port Pin 11
RS232,
RS232H
Ground SERIAL DATA, POWER AND GROUNDS terminal strip, any
pin labeled GND
Receive Audio AUX Serial Port Pin 10
Transmit Audio AUX Serial Port Pin 9
Push-To-Talk (PTT) AUX Serial Port Pin 11 AUX Serial Port Pin 4
DCD AUX Serial Port Pin 8 AUX Serial Port Pin 11
RADIO, TW-
RADIO
Ground AUX Serial Port Pin 7
Connecting To COM2
To connect a TTL sensor to COM2, use pins 17 and 18 on the Auxiliary Serial Port.
The Compass Port (part of COM2) is a 4-pin connector located on the ZENO
®
-3200 CPU board and is
labeled as J3. It is located on the lower left-hand corner of the CPU board as shown in Section 13.4. The
pins are as follows:
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