Specifications

Installation
_
IMI 66-031
The polarity between the individual wires in a particular
voice or data pair is not critical; however, do not connect
the voice circuits to the data circuits: To do SOI will
make a station inoperative as well as the adjacent odd or
even station.
3.
After making the wiring connections discussed above and
illustrated in Figures 2 through 5, double check all connections
and cable routing to insure accuracy.
When a serial data printer is used for SMDR and COS printout, connect
it to clips 41,
42 43, and 44 of station connector block Jl.
Transmitted data, signal ground, request-to-send, and clear-to-send
terminations are supplied at the connection block by the KSU.
levels meet RS-232 specifications.
Signal
A typical connection configuration
is as illustrated in Figure 5.
The maximum distance between the
printer and the KSU must not exceed 50 feet. When preparing a cable
for connection to the printer interface connector, refer to the
manufacturer's manual applicable to the printer being interfaced, and
make the following wiring connections:
.
l
0
l
a
Wire the TD line (data to printer from KSU - clip 41) to the printer
-.,
receive data input pin. -
Wire the SG line (signal ground - clip 42) to
ground pin.'
the printer signal
Wire the RTS line (status signal from the KSU
43) to the printer data-set-ready input pin.
to the printer - clip
Wire the CTS line (status from printer to KSU
printer request-to-send output pin.
- clip 44) to the
Configure the printer
, per the manufacturer's instructions, to receive
7-bit data, 2 stop bits,
and no parity.
Set the baud rate for the
serial data at 110 or 300 baud.
The printer baud rate setting must
match the system baud rate set by COS programming.
defaults to a baud rate of 110.
The system
22