Chapter 12: Base Station Configuration - Worth Data 7100 RF Terminal Series Owner's Manual

Chapter 12:
Base Station Configuration
Opening a Base
As preparation for changing the Channel on a Base Station or changing the Base to operate as a Relay, the case must be opened to
expose the circuit board with the switches and jumpers. Be sure you disconnect power before opening the case.
Turn your Base Station upside-down, and unscrew its single phillips head screw. If you don't completely remove the screw, you
can use it as a lever to pull up on the cover.
Otherwise, insert a fingernail, credit card edge or small screwdriver blade into the gap between the Base and side of the case, and
gently use it as a lever to lift up the edge of the Base. Then grasp the edge of the Base and open it outward like a door.
Changing a Base to a Relay
Moving the jumpers to any of the Relay positions causes the Base Station to operate as a Relay. A Base station blinks green on
power up; a Relay blinks yellow on power up.
RS-422 Termination Jumpers
Refer to the circuit board diagram for details.
The Base can be jumpered to be RS-422 terminated or not terminated. By default, all Base stations are shipped as terminated. Use
the following guidelines to change the termination for your system:

If the Base has multiple strings of relays radiating from it, the Base would not be terminated.

If the Base is first in a string, (not in the middle or end of a string), set the 422 jumpers to Base w/RS-422 termination.

The last Relay in each string should have its jumpers set as a Relay w/RS-422 termination.
Channel Changes
To determine the current channel of a Base Station , power up the Base and watch the LED light on the front of the unit. On pow-
er UP, a Base LED will blink "channel +3" times. For example, a unit that blinks 5 times on power up is operating on channel 2.
Channel 0 blinks 3 times, channel 5 blinks 8 times.
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