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MDS P-60/P-60 HL Reference Manual
MDS 05-2818A01, Rev. C
AC power supplies are most commonly wired for 120 Vac, but can readily be
rewired for 230 Vac if desired. There is a chart on the side of the power supply;
unmount the power supply to view it.
Accessory DC Power Out—J8
Accessory Power connector J8 on the Interface/Utility Board can be used to
provide up to 2 amperes at 13 Vdc negative ground for accessories. Fuse F2
provides over-current protection for this power.
Pin 1 of J8 is connected to the +13 volt DC supply. Pin 2 is at DC ground.
Backup Battery—Important information
Packaged systems supplied wired for AC operation have a backup battery
system installed as standard equipment. The battery is disconnected for ship-
ping by unplugging its cable from the Interface/Utility Board. This prevents
accidental discharge of the battery and radio operation while the unit is in ship-
ment or storage. Plug the battery cable into J4 to enable the backup power
option.
Antenna Connection
A type-N coaxial connector on the lower right side of the transceiver chassis
serves as the antenna connection to the packaged system. Route the antenna
coax through the front hole (a weathertight bushing) on the bottom of the
enclosure and attach it to the transceiver connector. This bushing is also com-
monly used to pass the RTU interface cabling through to the Interface/Utility
Board. Do not tighten it until all cabling has been installed.
Refer to the transceiver manual for additional information on selecting and
installing antennas and feedlines.
NOTE:
The following subs ection describes audio and keyline connections
to an MDS
P-50
Analog
Interface/Utility Board (P/N 03-1105A21).
Instructions for the
Digital
Interface/Utility Board are given in the
next major subsection.
3.5 Analog Interface/Utility Board Connections
(P/N 03-1105A21)
The Analog Interface/Utility Board serves as the connection point for all audio
and keyline connections to the MDS
P-50. Route the cabling to the Inter-
face/Utility Board through the weathertight bushing on the bottom of the
enclosure (also used for the antenna coaxial cable). Tighten the bushing after
installing the interface cable.
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