Lencore Spectra i.Net: Installation and Operations Manual - Manual (Page 33)

section 5 section 5
Scenario 2: Sound masking page and music
Audio volume and EQ adjusted by an external amplifier and / or EQ
J7 Jumper in pin-1, pin-2 Ground2, Ground1 connected, recommended
Jumper in pin-3, only Music - in isolated from music - out
Jumper in pin-5, only Music + in isolated from music+ out
Jumper in pin-7, only Page - in isolated from page - out
Jumper in pin-9, only Page + in isolated from page 1 out
J8 1- Page+
2 - Page -
3 - Music +
4 - Music -
5 - Ground
Connect to balanced + input of amplifier/EQ (ie. left channel +)
Connect to balanced - input of amplifier/EQ (i.e. left channel -)
Connect to balanced - input of amplifier/EQ (i.e. right channel+)
Connect to balanced - input of amplifier/EQ (i.e. right channel -)
Connect to (-) power of last OP (i.e. OP30)
J9 1- Page+
2 - Page -
3 - Music +
4 - Music -
5 - Ground
Connect to balanced + output of amplifier/EQ (i.e. left channel +)
Connect to balanced - output of amplifier/EQ (i.e. left channel -)
Connect to balanced + output of amplifier/EQ (i.e. right channel+)
Connect to balanced - output of amplifier/EQ (i.e. right channel -)
Connect to (-) power of first of additional OP’s (i.e. OP31)
If an amplifier(s), such a two TOA BG1015’s are used, with high impedance balanced inputs, then...
J11 Jumper in pin-1, pin-2
J12 Jumper in pin-1, pin-2
The Amplifier will provide the page termination
The Amplifier will provide the music termination
If another amplifier(s), or EQ that has 600 ohm low impedance balanced inputs then...
J11 Jumper in pin-2, pin-3 Leaves page line unterminated
J12 Jumper in pin-2, pin-3 Leaves page line unterminated
You must open the router housing to adjust any jumper settings. To open the router, unscrew all three outside
green screw terminals and pull terminals off the router housing (power, jumper in and jumper out).
Then unscrew one side and slide off housing top.
Then slide PC board out of housing (make sure you are personally discharged of any and all static electricity
before handling a raw PC board).
Make necessary jumper changes or modifications.
Put unit back together.
5.12 | router settings
Lencore Router Jumper Description
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