3
etc.) then
STATION LEVEL PAGING CAN NOT
BE USED
. Consult the Valcom catalog for an
appropriate trunk level page adapter. If there is
silence of at least
10 SECONDS
before any
tones are returned, then one-way paging may
be used. If the line
REMAINS SILENT
for at
least 1 and 1/2 minutes after disconnect, then
one-way or talkback paging may be used.
If the type of paging desired is possible on a
station level of the PABX, continue in this
section to determine equipment required.
•
One Zone of One-Way Paging:
This arrangement requires one PABX station
number, one V-9940 page adapter, appropriate
Valcom One-Way Amplified Speaker
Assemblies and a -24VDC power supply.
•
Multi-Zone One-Way Paging with All Call:
This arrangement requires a PABX station
number and V-9940 for each zone and an
additional number and V-9940 for all call.
One-Way amplified Speaker Assemblies and -
24VDC power supplies are also required.
•
One Zone of Talkback Paging:
This arrangement requires one V-9940, one
V-9941A, one-zone talkback unit, appropriate 45
Ohm talkback speakers (maximum 2), and a
VP-624B power supply. See Note.
Centrex or C. O. Line Access to
Paging:
NOTE: Although the V-9940 will work on
both loop start or ground start lines, when
using Centrex service, ground start lines
provide better security against returned
tones. In addition, Centrex lines should be
optioned for cut OFF when disconnect
occurs.
•
One Zone of One-Way Paging:
One zone of One-Way Paging requires one
Centrex or C. O. Line, a V-9940, One-Way
Amplified Speaker Assemblies and a -24VDC
power supply.
•
Multi-Zone One-Way Paging:
Multi-zone One-Way Paging requires one
Centrex or C. O. Line, a V-9940, a dial select
page control unit (V-2003A, V-2006A,
V-1109RTVA, V-119RTVA or V-136RTHF),
appropriate One-Way Amplified Speaker
Assemblies and a -24VDC power supply.
NOTE: All Call is included with the V-2003A,
V-2006A and the V-1109RTVA.
It may be added to the V-119RTVA with a
V-1118 and to the V-136RTHF with a V-1134.
See Note.
•
One Zone of Talkback Paging:
One Zone of Talkback Paging requires one
Centrex or C. O. Line, one V-9940, one
V-9941A, one zone talkback unit, 45 Ohm
talkback speakers (maximum 2) and a VP-624B
power supply. See Note.
•
Multi-Zone Talkback Paging:
Multi-Zone Talkback Paging requires one
Centrex or C. O. Line, one V-9940, a dial select
page control unit (V-2003AHF, V-2006AHF,
V-1109RTHF, V-119RTHF or V-136RTHF),
appropriate talkback speakers and a -24VDC
power supply.
NOTE: One-way All Call is included with the
V-2003AHF, V-2006AHF, and V-1109RTHF. It
may be added to the V-119RTHF with a
V-1118 and to the V-136RTHF with a V-1134.
See Note.
Wiring of each arrangement is covered in the
Installation Section.
NOTE: When using the V-9940 Expandable
Station Level Paging Adapter to access
multi-zone or handsfree control units, it
should be understood that the quality and
noise characteristics of the C . O. Line circuit
may affect the operation of this equipment
adversely.
Dip Switch Settings
The dip switch settings are crucial to proper
operation of the V-9940 and are different for
each application. The dip switches select the
way the V-9940 releases from the line and how
long a page may be made. There are three
ways the V-9940 releases from the line that are
dependent on dip switch settings:
Open Loop Detect
The V-9940 detects a 150ms or longer break in
loop current one second after ring trip and
release from the line. The one second delay in
line supervision is allowed due to the instability
of some C. O. and Centrex lines for the first
second after ring trip.
Dip switch settings: Set dip switches 1 and 8
"ON", dip switches 2 through 7 "OFF".
NOTE: This setting provides unlimited page
length. In certain instances a default timeout
release is recommended. To select a default
