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Table 7. Interface/Utility Board Features & Indicators (Continued)
MDS P-60
J1
w/Digital
(Modular)
Interface/Utility
Board
MDS P-50
J11
w/Analog
(Modular)
Interface/Utility
Board
MDS P-50
J9
w/Digital
(Modular)
Interface/Utility
Board
1.
These features are not available on units equipped with an MDS 9000 Series Transceiver.
2.
Control adjustment procedures are given in Chapter 5—Servicing Data.
MDS 05-2818A01, Rev. C
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J3 (Modular)
CR15—AC
or
power failure
DB-25
indicator. (On
connector
with battery
operation.)
(SW2 used to
switch these
CR12—
jacks in or out
Transmitter
of the circuit)
keyed
N/A
CR8—AC
(HHT must be
power failure
connected
indicator. (DC
directly to
power indicator
transceiver)
with battery
operation.)
N/A
CR5—AC
(HHT must be
power failure
connected
indicator. (On
directly to
with battery
transceiver)
operation.)
CR4 Transmitter
keyed indicator
Connecting an Order Wire Handset
Order wire (voice) operation over data frequencies is not permitted
NOTE:
in all countries. Check the regula tions before connecting an Order
Wire handset to your system.
The radio equipment installed in the packaged system is normally used for data
(non-voice) transmission. Occasionally, however, it may be desirable to estab-
lish a temporary voice link to personnel at the master station to coordinate
installation or maintenance activities. This is accomplished with an "Order
Wire" connection.
Many packaged system Interface/Utility Boards have a modular tele-
phone-style jack that will accept an Order Wire handset (see
Table 7 on page 42
shows the appropriate jack number to use for each pack-
aged system model. Although many standard telephone handsets can be used
for Order Wire service, GE MDS offers a unit specifically intended for use
with its transceivers (P/N 12-1307A01). The Order Wire facility is not avail-
able on units equipped with an MDS 9000 Series Transceiver.
To use the Order Wire feature:
1. Plug the Order Wire handset into the modular jack on the
Interface/Utility Board. (See
jack number.)
2. Key the transmitter by speaking into the handset (VOX).
MDS P-60/P-60 HL Reference Manual
SW1—Red
R13—Order
button.
wire handset
Used to
manually
key the
transceiver.
SW1—Red
R2—RX audio
button.
level
Used to
R19—TX audio
manually
level
key the
transceiver.
SW1—Red
R19—Order
button.
wire deviation
Used to
manually
key the
transceiver.
Figure
for the appropriate
Table 7 on page 42
1
1
23).
43
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