User Manual

EASy-PLUS
®
User Manual
26 –
TRILITHIC
Rev 1.02
The composite I.F. distribution system is now installed.
7.4 Auxiliary I.F. Switch Installation (SW-4)
The SW-4 switch is used to locally activate a contact closure on the rear of a modulator or processor enabling the
internal I.F. switch built into the chassis. The E.A.S. I.F. signal and DC current are fed to the input port of the SW-4
switch from the LS-16P. The signal passes through the switch to the Aux. I.F. Input port on the rear of the modulator or
processor. The DC current is blocked at the input to the SW-4 and converted to a normally open (N/O and N/C) contact
closure. The N/O terminal of the SW-4 should be attached to the rear of the modulator on the appropriate screw terminal
to cause the internal I.F. switch to activate when the LS-16P distribution system sends its signal to the SW-4. The ground
terminal on the SW-4 should also be attached to an appropriate grounding point on the modulator or processor.
Rear View
Front View
LS-16P
15 13 11 9 7 5 3 1
I.F. IN
OFF
ON
TEST
LS-16P
??TRILITHIC
16 14 12 10 8 6 4 2Input from I.F.
source modulator
I.F. output to any other LS-16P Lossless Splitter
or any other Aux. I.F. Input or any other SW-1 or
SW-4 switch located at a modulator or processor.
LS-16P
PS
LS-16P
LS-16P
Primary LS-16P
E.A.S.
MAST IN
MAST OUT
GND
MAST IN
GND
TTL Control Line from Encoder/
Decoder pins G and 1. Use
headend audio wire.