User`s guide

Connecting the ZN-241GI to a Computer
The ZN-241GI is designed to connect to the serial port of a personal
computer or an industrial device with either an RS-232C or two-wire RS-
485 serial port. Configuration of the ZN-241GI is performed using the
ZNWizard program running on a PC. To connect to a PC, use the
Configuration Cable provided, connect one end to a serial port on your
computer and the other end to the serial connector on the rear of the ZN-
241GI. Make sure that RS-232C operation is selected.
Applying Power to the ZN-241GI
Power is supplied to the ZN-241GI through the Data/Power Connector
on the rear of the unit. The ZN-241GI accepts DC power in the range of
+9V to +24V. A 9VDC wall-mount power supply is provided with the ZN-
241GI as part of the Configuration Cable. If the ZN-241GI will be used
with an RS-232C device, the Configuration Cable may be used.
Alternatively, an external DC supply between +9V to +24V may be used.
A second Data/Power Connector is included with the unit. The
Data/Power Connector pinout is provided in the table below.
Pin Number Signal
1 Vcc - +9VDC to +24VDC
2 Ground
3 485_EN – Connect to Ground for 485 operation
4 Ground
5 TX/A – RS-232C Transmit Data, 485 A Signal
6 RX/B – RS-232C Receive Data, 485 B Signal
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