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mc²56 MKII Technical Manual
V5.10.2/1
353
Chapter 7: Appendices
Local I/O Wiring
Local I/O Jumper Switch Positions
There are four jumper switches on the
, which control two settings:
·
JP 3,4
- set the connection to the
Line input 16
A-D converter. This can be taken from:
o
an "internal talkback mic preamp" (set by
JP 1,2
).
o
the
LINE IN 16
connection from the rear panel.
·
JP 1,2
- set the "internal talkback mic preamp" to:
o
the integrated talkback mic preamp (fitted as standard).
o
the talkback mic preamp fitted to the optional 962/16 INTERCOM
Note that the
JP 1,2
switch positions affect both the connection to the
Line input 16
A-D converter, and the line
level talkback output available via the
TBK
connector.
The factory default positions, shown above, support talkback via the integrated talkback mic preamp.
you can need to adjust the jumper switches if:
·
the 962/16 INTERCOM
is fitted. Move
JP 1,2
to connect talkback from the INTERCOM panel's
talkback mic preamp.
·
you are using an external talkback source, and wish to "free up"
Line input 16
for another application.
Move
JP 3,4
to connect Line input 16 from the
LINE IN 9-16
connector.
Please see
Adjusting the Local I/O Jumper Switch Positions
For more details on the 962/16 INTERCOM user panel, please refer to the relevant data sheet.
Summary of Contents for mc256 MKII
Page 1: ...Technical Manual mc 56 MKII Version 5 10 2 1 Edition 12 September 2017...
Page 350: ...mc 56 MKII Technical Manual V5 10 2 1 350 Chapter 7 Appendices Local I O Wiring...
Page 351: ...mc 56 MKII Technical Manual V5 10 2 1 351 Chapter 7 Appendices Local I O Wiring...
Page 352: ...mc 56 MKII Technical Manual V5 10 2 1 352 Chapter 7 Appendices Local I O Wiring...