Omega Vehicle Security 1400 User Manual

3-2

ChartScan User’s Manual

ChartScan’s rear panel contains several items, including a set of LEDs for status indication.  The LED indicators are
described in the following table.  Other rear panel items are listed in a separate table following the illustration.

LED Indicators, Chassis
ALARM

ON when an alarm has occurred. The indicator remains ON until the alarm condition clears.

OFF when no alarm condition exists.

TRIGGER

Flashes when ARMed (waiting for a trigger), is ON continuous when triggered; is OFF when

data collection is finished.  Trigger is also turned OFF by IEEE DCL or SDC.

SCAN

ON when ChartScan is storing a channel scan in its internal buffer.

SEND

ON when transmitting data to the serial interface (for RS-232 operation only).

RECEIVE

ON when receiving data from the controlling computer (for RS-232 operation only).

ERROR

ON when an error has occurred, OFF when no error condition exists.  See the Error Query (E?)

command for more information.

POWER

ON when power is applied to ChartScan and the power switch on the back panel is in the ON

position (depressed).  OFF if power is not present.

Provides a means for connecting ChartScan to one of two voltage supplies:
105 - 125V, or 210 - 250V.  The connected power supply must agree with that selected by
ChartScan’s internal slide switch (described later in this chapter).

Turns power ON or OFF.

A single point grounding node for, but not limited to, thermocouple shield termination.

Pushbutton used to enable/disable the hardware protected portion of NVRAM during ChartScan

main unit calibration.  Note that this pushbutton does not exist on early production units.
Early production units use micro-switch #9 (on the DIP switch) instead of a calibration
pushbutton.

Refer to Chapter 6 for detailed information regarding calibration.

BNC Trigger input for initiating and/or stopping acquisition with TTL input signal

BNC TTL Scan output signal occurs for each channel scan; used for synchronizing other

equipment with ChartScan acquisition.

DB50 connector offers easy access to Alarms and Digital I/O (32 digital outputs and 8 digital

inputs)

Serial port for operation at remote distances from controlling computer.  Supports various baud

rates using RTS/CTS or XON/XOFF handshaking.  When ChartScan is configured for
RS-232 serial communications, this port can be used to connect ChartScan to a Net232
ethernet/RS-232 converter for ethernet operations.  Refer to the Net232 User’s Guide for
ethernet-related information.

Used for selecting RS-232 or RS-422 and respective communication parameters, i.e.,

handshaking, parity and Baud Rate.  Also allows for section of IEEE 488 and address
settings.  An IEEE 488 interface card is required for IEEE 488 operations.

For installing the optional IEEE 488 interface card.  Note that RS-232 serial interface is the

default and is possible with or without an interface card.

See previous table, LED Indicators, Chassis.