
TYPICAL SYSTEM CONNECTIONS
1678CM System Keyboard to 1996R
NOTE : THESE CONNECTIONS ARE TYPICAL OF ONE SYSTEM KEYBOARD.
EACH RS232 PORT IS PROGRAMMABLE.
XMIT
RCD
GND
AC
AC
GND
B
W
S
CTS
DTR
DATA
RCD
XMIT
GND
Transformer
1678TB
1678CM
1996R
HP0047
JJ0007
1
2
3
4
5
6
7
8
2
1
2
1
4
6
A
5
5
THREE-WIRE, 18 AWG,
SHIELDED CABLE
1
2
3
4
5
6
7
8
9
10
PROG MON
DATA LINE
PORTS
1
2
120V
60HZ
!
DO NOT CONNECT TO TELEPHONE CIRCUITS