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V.35 Shunt Procedure
Either an EIA-232D or ITU-T V.35 electrical interface can be selected on the data port. Units are
shipped with EIA-232D signal levels selected. Use the following procedure to select V.35.
CAUTION: This procedure requires opening the unit. Like most products of this type, this product
contains components that are sensitive to static discharge. Please avoid static discharge when in
contact with components.
1. Ensure that the external power supply is disconnected from the MultiFRAD.
2. The enclosure consists of two halves. Using a Phillips screwdriver, remove the two screws from
the bottom of the unit (Figure 2-4). Remove the top half.
3. Pry the shunt (data or Trunk) out of its default RS-232 socket and insert it into the corresponding
V.35 socket (Figure 2-5).
4. Carefully reassemble the unit making sure that no foreign objects are accidentally left inside.
5. The data port is now ready to be configured with V.35 signals. The cable pin designations are
shown in Appendix A. To connect to a device equipped with a V.35 34-pin connector, you must
obtain an adapter cable. Use the signal pin designation in Appendix A when making or ordering
the adapter cable.
FR111A
Enclosure Mounting Screws
Figure 2-4. Enclosure Mounting Screw Locations
LEDs
V.35 Trunk Shunt Position
Figure 2-5. Shunt Positions
Chapter 2 - Installation
RS-232C Trunk Shunt Position
17
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