Clear-Com V12PDDXY - Manual (Page 135)

7.1.3 Placing expansion panels
The following section describes how to install the following optional, accessory key panels:
• The V12LDE Lever Key Expansion Panel adds 12 lever key talk/listen selectors to a
panel.
• The V12PDE Pushbutton Expansion Panel adds 12 pushbutton talk/listen selectors
to a panel.
• The V12RDE Rotary Expansion Panel adds 12 rotary talk/listen selectors to a panel.
The installation procedure is identical for these panels.
Note:
Expansion panel types (lever key, pushbutton or rotary) may not be mixed in a daisy chain of
such panels and must be connected to a main panel of the same type.
Only one rack unit (1RU) of a standard Electronics Industry Association equipment rack is
required for each expansion panel. The panels’ compact size makes them ideal for use in TV
control rooms, edit suites, mobile OB vans, and any other location where many talk/listen
keys are necessary but space it at a premium.
All panels provide 12 additional selectors with displays.
Mounting
All accessory panels are mounted in a standard 19-inch wide (48.3 cm) standard Electronics
Industry Association rack, requiring one unit of rack space each. Leave at least 2 in. (51 mm)
of clearance behind the rear of the chassis to allow for cable connectors.
Power
Each expansion panel is powered by an external power supply which may be mounted on
the back of the panel using the mounting clip provided. To connect the power supply to an
expansion panel, route the transformer’s output lead to the power connector on the back of
the panel. This is a 4 pin connector.
Panel connection
A cable is supplied with each panel to connect it to a main panel or to additional expansion
panels. The cable is a 6-ft. long (1.8 m) CAT5 cable with RJ45 connectors at each end. If
custom length cables are to be made, they should be made with cable with 22 to 24 AWG
wire. The pins should be wired one-to-one between the RJ45 connectors. The maximum
distance between the panel and the last expansion panel should be 25 ft. (7.6 m).
To connect an expansion panel to a main panel:
1. Plug one end of the CAT5 cable into the RJ45 expansion socket on the back of the
main panel.
2. Plug the other end of the CAT5 cable into the input connector on the back of the
expansion panel.
135 V-Series Panels User Guide