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8
SRC-4 Installation and Operation Manual
INSTALLATION
Input Strings:
*011
=
Input 1 High
*010
=
Input 1 Low
*021
=
Input 2 High
*020
=
Input 2 Low
*031
=
Input 3 High
*030
=
Input 3 Low
*041
=
Input 4 High
*040
=
Input 4 Low
Firmware Version:
*0U
=
SRC-4 1.02 (or latest firmware version). This is also displayed at
power-up or reset.
Pair Operation Mode
In pair mode inputs from one SRC-4 will map directly to the outputs of another SRC-
4 when connected together via the RS-232 port. This allows two SRC-4’s to be used as
a “relay extension cord.” You may need a “null-modem” serial cable for this operation.
NOTE:
When in pair mode, as soon as a communication failure is detected, all
relays will be turned off. As soon as communications is restored, the relays will be
set according to the other unit’s inputs.
Data Operation Mode
This mode allows the SRC-4 to be used with a wide variety of serial devices by allow-
ing the user to define custom relay control strings and custom input strings. These strings
are set in the Data Programming Mode and are used in the Data Operation Mode.
Data Programming Mode
When the SRC-4 is powered up in Data Programming mode it will automatically
display the programming menu:
SRC- 4_1.02
OUTPUT 1
ON: OFF:
OUTPUT 2
ON: OFF:
OUTPUT 3
ON: OFF:
OUTPUT 4
ON: OFF:
INPUT 1
ON: OFF:
INPUT 2
ON: OFF:
INPUT 3
ON: OFF:
INPUT 4
ON: OFF:
ENTER 1, 2, 3, or 4 for output data, 5, 6, 7, or 8 for input data,
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