Can the remote front panel cable be extended beyond the stated 100 foot length?
The cable carries RS232, +5V power, and two special purpose lines. The +5 V power is the limiting factor in cable length, and the factor that drives the need for 26 gauge wire and a cable shield (if there's no other common ground).
However, we have had customers who were able to extend the length by doing the following:
- Do not wire pins 1, 8 and 4 on the remote cable
- Provide external power of 5 volts to pins 1 and 8 on the Remote Front Panel.
- Tie pin 4 on the WVR7100 to +5 through a 1K resistor.
For extreme lengths, a RS232 repeater/amplifier might be employed.
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