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. Opening covers
Remove 4 screws from bottom covers.
o OPC-617 connection
Connect to J4
Break the jack plate using cutting pliers
to connect the OPC-617.
o Installation location
Install option units.
OPC-617 ACC CABLE:J4
UT-96 s-TONE UNIT ) .^
or UT-80 2-TONE UNITJ 'ro
EX-1761 MEMORY EXPANSION UNIT:J7
oPc-617
PIN ASSIGNMENT
o@ o
q'B
*sR:>
Pin
No.
Terminal
name
Description
Specification
1
DIM
Backliqht control input
+5 to +30 V for dark
2
PAAF
AF output for public
address and Ext SP
functions
0 to 330 mV rms/
47 kA
3
Dtsc
AF output for a terminal
unit
330 mV rms/100 kQ
4
IN
AF input for a terminal unit 330 mV rms/1200 bps
5
PTT
PTT control input
0 V for transmit
o
HORN
Grounded when receiving
the specified call
Less than 50 mA
when grounded
7
PAAF E] Ground for PAAF
8
Drsc e)
Ground for terminal outout
o
rN e)
Ground for terminal inout
3-1
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