Telex UAD4 Volt Power On Antenna In Jacks, Moving Jumper Be sure to move jumper on both headers

12 Volt Power On "Antenna In" Jacks

To power UAA-500 in-line antenna amplifiers, 12 volt power is available on the center pin of the antenna in jacks. This power is disabled when the UAD4 leaves the factory but may be turned on by the installer.

To turn on the 12 volts, first take off the cover of the splitter by removing the screws. The jumper is installed on one pin of the header at the factory. To turn on power, unplug the jumper and install it on both pins of the header. See Figure 7.

CAUTION: Do not attach antennas and splitters with a DC short circuit to the antenna in jacks when the power is turned on. Damage could re- sult to the splitter or other devices.

The following antennas and accessories may be used with power on: FA-1, CLA-X, ALP-450B, and UAA-500.

The following antennas and accessories may be used with the power off: FA-1, CLA-X, and ALP-450.

J10 J10

C33 C32 C33 C32

L8	J16
VC3
	C31

L8	J16
VC3
	C31

J16 POWER ON J16 POWER OFF

J1

C25 C30 L6

J11

C26

J11 POWER ON

J1

C25 C30 L6

J11

C26

J11 POWER OFF

Figure 7

Moving Jumper

(Be sure to move jumper on both headers)

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