Valcom V-WMCA Series Installation Manual page 18

Installing a Master Clock - GPS Antenna with Surge Protector (Optional)
Customers are offered the opportunity to purchase a surge protector, which is designed to defend the
master clock from a lightening strike to the GPS antenna. The means of connecting the cable to the master
clock is identical to a normal installation, but the procedure for connecting the antenna to the cable and
mount changes:
1) Notice that the surge protector has a tag which
reads COAXIAL SURGE PROTECTOR in the middle,
and GROUND at the bottom.
2) Attach the antenna connector to the PROTECTOR
side of the surge protector.
3) Thread the GPS cable through the mounting
bracket and pole.
4) Screw the end of the GPS cable onto the connector
on the COAXIAL side of the surge protector. The
assembly should now look like the picture on the right.
5) Use a screwdriver to loosen the GROUND screw.
Wrap the exposed end of an 8AWG grounding cable
around the shaft of the screw, then tighten the screw
again. Make sure that the grounding wire runs from
the Surge Protector to the building's grounding system.
6) Attach the pole to the mounting base. Refer to
step 3 on the previous page.
7) Insert the pole into the brass cap on the COAXIAL
side of the surge protector. While holding the cap
stationary, twist the pole clockwise until it is firmly
screwed into the cap.
8) If you are using a metal pole, attach a grounding
wire to the pole. The grounding wire should be
12AWG or thicker.
9) Attach the completed assembly to the roof. Use
a method that will allow the pole to remain upright
during severe weather conditions.
10) Attach the other end of the GPS cable to the connector on the master clock if you have not done so
already. Refer to the previous page for a diagram.
11) Within 30 minutes, the antenna should acquire a GPS signal.
If you wish to purchase a surge protector at a later time, call your regional salesperson and ask for the
following part number: E-GPS-SURGE-1
Valcom, Inc.
5614 Hollins Road
Roanoke, VA 24019
USA
GPS ANTENNA
GPS Antenna
GPS SURGE
PROTECTOR
GPS Surge Protector
(OPTIONAL
(Optional accessory)
ACCESSORY)
SURGE PROTECTOR TO
GPS Surge Protector GPS POLE ADAPTER
to GPS Pole Adapter
GPS CABLE LEADING TO
GPS Cable leading to
SAPLING MASTER CLOCK
Valcom Master Clock
GPS MOUNTING POLE
GPS Mounting Pole
M-GPS-MTG-KIT-1
(Optional Accessory)
GPS MOUNTING
GPS Mounting Bracket
BRACKET
P. 540-563-2000
F. 540-362-9800
www.valcom.com
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