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IMI 66-083
. . .
:
DATA DEVICE CONNECTIONS
‘The sys?em provides two RS232 Data Ports for use.
l
When a video display terminal (VDT) is used to
perform class of service programming, connect it
to
RS232 Data Port A.
l
When a serial data printer is used for SMDR,
SMDA, and CCS printout, connect it to the RS232
Data Port B.
The distance between the data device and the
common equipment can be up to 500 feet in a quiet
electrical environment. Shielded cable may be
required at some sites for long runs. For longer
distances, a limited distance modem must be used to
relay the data communications between the common
equipment and the data device.
When preparing a cable for connection to a data
device, refer to the manufacturer’s manual for the
equipment being interfaced and make the following
wiring connections:
Wire the common equipment RD (data from device
to common equipment) connection to the device TD
(transmit data) connection.
Wire the common equipment TD (data to device
from common equipment) connection to the device
RD (receive data) connection.
Wire the common equipment SG (signal ground)
connection to the device SG (signal ground)
connection.
If required for proper operation, wire the common
equipment CTS (clear-to-send status from device to
common equipment) connection to the device RTS
(request-to-send) connection.
NOTE: The common equipment requires a positive
voltage, with respect to signal ground, in order
to send data.
The default data format is as follows. Configure the
data device to match this data format for initial
operation.
@
7-bit data with 2 stop bits and no parity
6
Baud rate of 300 baud
The Data Ports are located as follows and are
connected as illustrated in
Figure 3-12
on the next
page.
IdLine, &Station And &Line, 16~Station Base Units
0
Clip terminals 37
-
40 (data port A) and 41
-
44
(data port B) on station connector block.
SIG. PORT A
PORT B
TD-
TERMINAL 37 TERMINAL 41
RD=
TERMINAL 38 TERMINAL 42
CTS = TERMINAL 39
TERMINAL 43
SG=
TERMINAL 40 TERMINAL 44
WLine,
32.Station Base Unit
@
Special modular jacks are available as data ports
SIG
JACK CONN.
None 1
CTS 2
RD 3
TD 4
SG 5
None 6