Edwards Signaling 910 - Manual (Page 2)

Maintenance and Repair
If the Phone Page should fail to operate properly, disconnect it from the telephone line and see if
the problem is due to the telephone line or the Phone Page.
CAUTION
Do not disassemble this device. It does not contain any servicable components.
If the problem is in the Phone Page, remove it from service and return it to your local Edwards
distributor. Contact our customer service department at (203) 699-3367 for a distributor in your
area.
Specifications
Nominal Input Voltage .......................................................................................... 120V AC 50/60 Hz
Input Voltage Limits ........................................................................................... 102-132V 50/60 Hz
Maximum Output Load ............................ 10 Amps Resistive, 4 Amps Inductive, 300W Tungsten
Power Requirement (not including signaling device load)
Standby ................................................................................................................................. 0 Watts
On .........................................................................................................................0.67 Watts at 90V
Ring Signal Voltage Limits ......................................... 90V AC + 30% @ 20 Hz @ 0.33 Duty Factor
Input Characteristics
Tip to Ring Impedance ................................................................................................ 11,705 ohms
DC Resistance .......................................................................................................................... Infinite
Ground type
plug in back
of unit for
connection to
120V AC outlet
Modular jack
Modular Duplex
Plug Adapter
Plug
release
lever
120V AC receptacle
for connection of
signaling device(s)
Supplied screw
for securing unit
to wall outlet
Cat. No. 910
Phone Page
Figure 1. Phone Page and Modular Duplex Plug Adapter
Phone Page
Power Cord
from Signaling Device
Telephone
Line Cord
Lamp
or
or
Flashing Light*
Horn*
or
Bell*
*Typical Edwards 120V AC Signaling Devices
Example 3
Incoming
Telephone Line
Phone
Page 120V AC Duplex
Wall Outlet
Telephone
Figure 3. Connecting Signaling Devices to Phone Page
120V AC Duplex
Wall Outlet
Telephone
120V AC Duplex
Wall Outlet
Telephone
Incoming
Telephone Line
Incoming
Telephone Line
Telephone
Junction Box
Phone
Page
Telephone
Junction Box
Telephone
Junction Box
Phone
Page
Modular Telephone
Extension Cord
(Not Supplied)
Modular Telephone
Extension Cord
(Not Supplied)
Modular
Duplex Plug
Adapter
Modular
Duplex Plug
Adapter
Modular
Duplex Plug
Adapter
Modular
Telephone Extension Cord (Not Supplied)
Example 2
Example 1
Figure 2. Connecting Phone Page to Telephone Line