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5.1.2.1: Using the Unicom 2500
®
The Unicom 2500 provides RS485/RS232 and Fiber Optic/RS232 conversion. In doing so it allows a Shark
200
meter with either RS485 communication or the optional Fiber Optic Communication Card to communicate with a
Unicom 2500 Installation and Operation Manual
PC. See the
for additional information.
Figure 5.6 illustrates the Unicom 2500 connections for RS485 and Fiber Optics.
Figure 5.6: Unicom 2500 with Connections
®
The Unicom 2500 can be configured for either 4-wire or 2-wire RS485 connections. Since the Shark
200 meter
uses a 2-wire connection, you need to add jumper wires to convert the Unicom 2500 to the 2-wire configuration.
As shown in Figure 5.9, you connect the "RX -" and "TX -" terminals with a jumper wire to make the "B(-)"
terminal,and connect the "RX +" and "TX +" terminals with a jumper wire to make the "A(+)" terminal.
5-5
e
Electro Industries/Gauge Tech
Doc# E149701
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