LC700 – User’s Guide
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Technical Specifications
INTERNAL SOURCE
IMB 5 Vdc
Power Consumption 1.9 W
Current Consumption 260 mA max.
EXTERNAL SOURCE
Voltage Range 10 to 35Vdc
Current Consumption 80 mA @ 24 Vdc
OPTICAL TRANSMISSION
Optical Transmission Line
62,5 or 50/125 µm optical cable with ST
connectors
Optical Wavelenght 820 nm
Typical Maximum Fiber Lenght 4000 m (12000 ft)
Baud Rates
EIA-232, 2.4Kbps to 57Kbps
EIA-485, 4.8Kbps to 920Kbps
COATING
None (Special orders must consult the factory)
LC700 Applications
The OPT-700 is a great solution for reliable long distance communications with the Smar LC700
Universal Hybrid Controller.
It can be used in the following ways:
• MODBUS Point-to-point to a computer for Monitoring or Configuration. Computer is the Master
and LC700 is the Slave.
• MODBUS Multi-drop. One computer connects to many LC700s and other MODBUS devices.
Computer is the Master and all others are Slaves.
• Connect the LC700 CPU to the Remote I/O Interfaces. One RIO interface in point-to-point or
more than one RIO in a multi-drop repeat optical loop.
TROUBLESHOOTING
Make sure that all of the connections are complete and the power is ON. If power is not on then
check the power source selection jumper that is located on the circuit board “J1”.
While you are using the EIA-232 configuration, the EIA-485 should be disconnected and the switch
# 1 should be in the off position. The repeater switch # 2 should be in the off position (except for
OPT-700 connected to Slave devices in a multi-drop mode).
While you are using the EIA-485 configuration, the EIA-232 should be disconnected and the switch
# 1 should be in the on position. For the multi-drop mode, the repeater switch#2 should be in the on
position for all OPT-700 except the one attached to the Master device.
Make sure that all of the devices in the communication system are using the same baud rate.
All fiber cables should be connected, see point-to-point or multi-drop connection.
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