Specifications

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SS 4.2 Installation and Operation Manual
DESCRIPTION
“Open Collector” Status Outputs, 4 Port Output Control
The SS 4.2 provides four open collector status outputs. The status outputs may be
configured to operate in one of three modes:
• The status outputs follow the associated channel.
• The status outputs a one-second pulse when the associated channel is selected.
• Software control
Relay Outputs, 4 Port Output Control:
The SS 4.2 contains 4 spst (normally open) relays. Each relay may be latched on,
latched off or momentarily turned on by a non-dedicated computer. The “pulse”
time may be set from 100 msec to 9.9 seconds. The default pulse length is one-sec-
ond. The relays may be set for “MPX” mode. In the multiplex mode, the relay fol-
lows the associated channel on output two.
Serial Communication:
The SS 4.2’s serial communication is supplied with a multi-drop RS-232 port, allow-
ing up to 4-SS 4.2’s on the same computers serial port. Commands may be entered
either via a menu (menu mode) or a short form code (burst mode). All commands
and responses use normal ASCII characters, facilitating scripting. A burst mode
command starts with an asterisk (“*”) followed by the device (ID) address as a sin-
gle decimal digit. The command to enter menu mode starts with a space (“ “) fol-
lowed by the device (ID) address as a single decimal digit. The menu mode displays
certain parameters, and allows the setting of the command serial communications
rate (“baud rate”), front panel lockout mode, silence sensor delay/restore times and
the selection of audio inputs and outputs.
User Programming:
The SS 4.2 programming is stored in non-volatile memory. Configurations are set
with selection dipswitches and computer commands.