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10 947101
OPERATION
General
The V-1101A contains the required circuitry to allow
paging access from most types of telephone systems.
To operate correctly, the V-1101A must receive two
signals: a ground on the Holding Ground input and
either a momentary AC signal on the Signal Input
lead or a momentary or continuous ground on the
Ground Start lead.
The unit may be wired for loop start operation for use
on PABX's or electronic key systems (Figure 3). In
this application the unit will supply the –24 Vdc talk
battery required by the telephone system trunk card.
The holding ground and start leads required by the
page unit will be supplied internally in this case.
Connections for access by a 1A2 line button are
similar to those above, except that the unit is
cross-connected directly to the button of the
telephone instead of to a trunk card (Figure 4). A
spare set of relay contacts is used to switch lamp
voltage to the phones.
When connecting the V-1101A to an intercom
number (Figure 5) four leads are required from the
intercom: Tip and Ring to supply audio, a Page
Control Lead, and a Signal Lead. The Page Control
Lead must supply a Ground whenever the intercom is
in use, and must be open when the intercom is idle.
This lead is used to release the V-1101A at the end of
a page. The intercom may be wired to use 10 Vac, 18
Vac, or 105 Vac for signaling. The intercom signal
must be momentary, i.e., the signal must be present
for approximately 1 second and then drop off. A
continuous signal will prevent the V-1101A from
operating.
When connecting the V-1101A to a page port (Figure
6) a Ground must be connected through the dry
contact closure of the telephone system page card to
both the Holding Ground and the Ground Start
terminals of the V-1101A.
Once the V-1101A has been activated it will remove
the background music (if connected) from the
speakers and allow you to page. The unit will stay
active until you hang up, at which time the holding
ground will be removed and the unit will be allowed
to release.
TECHNICAL ASSISTANCE
When trouble is reported, verify the unit is properly
connected and there are no broken connections
leading to this unit.
Assistance in troubleshooting is available from the
factory. When calling, you should have a VOM and a
test set and be calling from the job site. Call (540)
563-2000 and ask for Technical Support, or call
(540) 767-1555 for Valcom 24-hour Automated
Support or visit our website at
http://www.valcom.com.
Valcom equipment is not field repairable. Valcom,
Inc. maintains service facilities in Roanoke, VA.
Should repairs be necessary, attach a tag to the unit
clearly stating company name, address, phone
number, contact person, and the nature of the
problem.
Send the unit to:
Valcom, Inc.
Repair & Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056