Installation and Programming
IMPORTANT:
Electronic devices are susceptible to lightning and power station electrical surges from both the AC
outlet and the telephone line. It is recommended that a surge protector be installed to protect against such surges.
Step 1.
Move the Talk Battery Switch to the PP position.
Step 2.
Connect terminals 1 & 2 to the paging port.
Step 3.
Connect terminals 3 & 4 to line level input on amplifier.
2
1. Paging Port
A. Paging
Features Overview
VOX Time Out Delay
The voice activated contact closures,
terminal screws 1, 2, 3 (Aux Relay)
and 5, 6, 7 (Primary Relay) on the
PI-1A
, have an adjustable time out
delay from 0.9 to 4.3 seconds.
VOX Trigger Sensitivity
Turn the pot to the left to decrease and the
right to increase VOX trigger sensitivity.
Ring Volume Control:
Turn the pot to the left to decrease
and the right to increase the ringing (warble) volume.
Minimum: 0mV RMS, maximum: 490mV RMS.
Ring Pitch Control:
Turn the pot to the left to decrease and
the right to increase the ringing (warble) pitch.
3: Normally Closed
2: Common
1: Normally Open
Auxiliary Relay
The auxiliary relay is a second set of
contacts that work in conjunction with the
primary relay (terminal screws 5, 6, 7).
PP
T
Talk Battery Switch
J1
(2) #6 x ¾
panhead
screws
(included)
Power Input:
12V DC
(adapter
included)
Internal view
of the PI-1A
Switch
Talk
Battery
For Use with:
PP
OFF
Paging port output
of PABX/ KSU
T
ON
Unused Line/ Trunk
input of PABX/KSU
To Paging
Port
To Paging Amplifer
Input (600 Ohm)
4: Audio Out
3: Audio Out
2: Audio In
1: Audio In
Power Input:
12V DC
(adapter included)
VOX Time Out Delay
The voice activated contact
closures, terminal screws 1, 2, 3
(Aux Relay) and 5, 6, 7 (Primary
Relay) on the
PI-1A
, have an
adjustable time out delay from
0.9 to 4.3 seconds.
VOX Trigger Sensitivity
Turn the pot to the left to
decrease and the right to
increase VOX trigger
sensitivity.
PP
Talk
Battery
Switch
Internal view
of the PI-1A
Important:
The VOX trigger sensitivity should not need adjusting unless:
the
PI-1A
is disconnecting in the middle of a page (turn clockwise to
increase sensitivity if this happens) or the
PI-1A
is not disconnecting on
periods of silence longer than the VOX time out delay (turn counter
clockwise to decrease sensitivity if this happens).
Pin Description
12
Positive 12V:
A regulated 12VDC output
provided to operated external relays or other
devices (use terminal 11 as common).
11
Ground:
Used as the ground
(common) for terminals 10 and/or 12.
10
Night Ring Contact Closure Input:
Produces ringing over the paging system
when shorted to Ground (terminal 11).
9
Line in:
A ringing line will produce
ringing over the paging system.
8
7
Normally closed relay contact
6
Common relay contact
5
Normally open relay contact
4
Audio Out:
Floating 600 Ohm output,
connect to input of paging amplifier.
3
2
Audio In:
Connect to a page port
output or an unused C.O. line input
(trunk/FXO port).
1