Comdial ExecuTech 0616 Series User Manual page 8

Installation
Wire the KSU TD (data to device from KSU) pin to
the device RD (receive data) pin.
Wire the KSU SG (signal ground) pin to the device
SG (signal ground) pin.
Wire the KSU CTS (clear-to-send status from
device to KSU) pin to the device FITS (request-to-
send) output pin.
NOTE: The KSUrequires a positive voltage, wtth
respect to signal ground, in order to send data.
If required, wire the KSU FITS (request-to-send
status signal from the KSU to the device) pin to the
device DSR (data-set-ready) input pin.
If required, wire the KSU PG (protective ground)
tine(s) to the device protective ground pin(s).
Data Format
Configure the data device to match the following data
format and to receive data at the baud rate that is set
by COS programming.
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Baud rate of 110 baud (defautt) - can be changed
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to 300 baud through class of service programming.
System Grounding
It is required that a grounding wire, separate from the
three wire AC line cord, be used. A ground stud is to-
sulated, solid copper wire between the ground stud and
a reliable earth ground such as a metal cold water pipe
or a building frame ground.
Common Audtble and Auxiliary Station interface
Two sets of relay closure drycontact
able at the J-l station connector block.
One set (J-l connections) provides a dry-contact
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closure whenever any of the TELCOIPBX lines,
connected to the KSU, ring.
The other set provides a dry-contact closure when-
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ever system station 17 rings.
These contact closures track the ringing pattern in both
cases. The contacts are closed during the ringing
open
period and are
A typical connection is illustrated in Figure 2-2. Refer
to the paragraph headed Area Paging Interface for a
discussion for using these terminals in the attemate
paging function.
Do not exceed a I amp at 24 volts (.5amp at 48 volts)
load on these control terminals. If the load requlre-
ments exceed thls Ilmlt, connect the load through
an external slave relay. DO NOT CONNECT THESE
CONTROL TERMINALS DIRECTLY TO THE 117VAC
LINE.
24
points are avail-
during the silent perfod.