Food Services Trade Department
3M Center
St. Paul, MN 55144-1000
Printed in U.S.A.
E3M 1995 March
78-6912-0509-6 Rev. A
Printed on 50% recycled
waste paper, including 10%
post-consumer waste paper.
Installation Instructions
Duplex Menu Cable
78-8095-0180-8
Introduction:
The Duplex Menu Cable can be used for connections between menu signs/posts and intercom systems. The cable
contains 3 separate twisted-wire pairs.
Wiring Connections:
Connect the wire pairs to the appropriate components as shown below.
Duplex Menu Cable
“Tighter” Twisted Pair
without Shield —
Connect to the
Loop Detector/Air Switch
Shielded Twisted Pair
with Plastic Jacket —
Connect to Microphone
Shielded Twisted Pair
with Foil Jacket —
Connect to Speaker
Shield Drain
SP-110A
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