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13
ACS 16.2 Installation and Operation Manual
INSTALLATION
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RJ-11
Adapter
Pin
DB-9 D-SUB
Pin #
ACS 16.2
(Product Point of view)
4
3
RS-232 Receive
3
2
RS-232 Transmit
2
5
Ground
Modular Jack
Pin Numbers
To ACS 16.2 #1
To ACS 16.2 #2
Connecting the RS-232 Serial Port
The ACS 16.2 is supplied with a cross-over 4-conductor modular cable and
a (S9) 9-pin female D-sub modular adapter for serial control. Only use the modular
cord that is supplied with the ACS 16.2 or a replacement that reverses (cross-over),
such as Radio Shack Cat No. 279 0347. Connect the cable between the ACS 16.2
and your computers COM port or USB adapter cable (optional). The ACS 16.2 may
be serially controlled at baud rates of 9600 or 38400 baud. The unit is shipped set
for 9600 baud, with 8 data bits, no parity and one stop bit.
Connecting Two ACS 16.2’s to a single computer’s serial port
Multiple ACS 16.2’s may be cascaded serially to operate from the same seri-
al port. The first step is to assign unit ID’s to each ACS 16.2. One suggestion is to
assign unit ID 1 to the first ACS 16.2 and unit ID 2 to the second switcher. The sec-
ond step is to parallel the serial ports of the ACS 16.2’s. Plug the male end of the
duplex modular adapter into the supplied female (S9) DB-9 to RJ-11 adapter, then
attach the supplied modular line cords into each of the duplex modular adapter
receptacles (Allen-Tel AT202-6) and the other ends into each ACS 16.2 modular
receptacles. See the diagram below.
NOTE:
Three or more ACS 16.2’s may be daisy chained by using the above
description and an Allen-Tel AT150, 5-jack modular adapter.
