Tyco Galaxy SC Controller User Manual

Tyco Electronics Galaxy SC Controller J85501F-1
3 - 40 Installation Issue 13 February 2001
Table 3-J shows the signal descriptions, wire colors, etc. for the cable
assembly used to interface external equipment to the Data Switch option
of the Galaxy controller. The cable assembly comcode is 847540416.
Signal Descriptions
• The Alarm Sense and Alarm Sense Return leads are used to sense
an isolated alarm contact closure on the connected equipment. This
is used to determine when an alarm is present on the connected
equipment for dial out and history purposes. The alarm relay
contact should be a “closed on alarm” type. The alarm sense return
lead is connected to the controller's ground, which is roughly earth
ground. Power to sense the alarm contact is generated by the
controller, so care must be taken to ensure no power is present on
the connected equipment’s alarm relay contacts from any other
source.
• Receive Data is the RS232 level serial data coming from the
connected equipment to the controller.
• Transmit Data is the RS232 level serial data going to the connected
equipment from the controller.
• Data Terminal Ready is the RS232 level signal to the connected
equipment saying the controller is connected and functioning. This
Table 3-J: Data Switch Cable Interface
Pin #
Wire
Color
Name Function
Controller
Acts As
1blueALARM
alarm sense *
2 orange RXD
receiver data receiver
3brownTXD
transmit data driver
4slateDTR
data terminal ready driver
5 white GND
signal ground *
6 black DSR
data set ready receiver
7red RTS
request to send driver
8 yellow CTS
clear to send receiver
9 violet
ALARMR
(GND)
alarm sense return (signal
ground)
*
*See paragraphs below.

Tyco Galaxy SC Controller Specifications

General

Brand	Tyco
Model	Galaxy SC Controller
Category	Controller
Language	English