RS-232
1
2
3
4
J1
OUT
PGM MON
7
6
5
4
3
2
1
8
K
E
Y
B
R
D
TYPICAL SYSTEM CONNECTIONS
AD1676 KEYBOARD TO AD1650B
C-3
RCD
XMIT
GND
NOTE : THESE CONNECTIONS ARE TYPICAL OF ONE KEYBOARD.
EACH RS232 PORT IS PROGRAMMABLE.
TP8059
7.5 VOLTS AC
1.5 AMP
JJ0007
4
AD1676
JJ0007
1
2
3
4
5
6
7
8
HP0047
AD1650B
3-WIRE, 18 AWG, SHIELDED CABLE,
BELDEN 8770 OR EQUIVALENT
1
2
3
4
5
6
7
8
HP0047
Connect the cable ground
on the cable assembly to
one of the four corner
screws.