Led Indicators; Power (Green Led); Line 1/Line 2 (Red Led); Computer (Amber Led) - DIGITIZE DDI-9E Installation And Operation Manual

DDI-9E INSTALLATION AND OPERATION MANUAL
SECURE DD
BATTERY OK
03 JUN 95 16:24:35
RAW 1 DD #1
Dialer

4.1. LED INDICATORS

4.1.1 Power (Green LED)

A steady illumination (ON) indicates 6-12 VDC power applied.

4.1.2 Line 1/Line 2 (Red LED)

No illumination (OFF) indicates the connected phone line is OK (also checks for dial
tone).
A steady illumination (ON) indicates DDI-9E is answering the phone.
A flashing LED indicates phone line problems. Failure of both phone lines will
cause LED indicators to flash in unison.
Line 1 and Line two LED's flashing alternately indicates SYSTEM 3500 commanded
DDI-9E not to answer the phone. This feature is used when redundant SYSTEM
3500 are in service (i.e. one DDI-9E is on line, while the backup DDI-9E is off Line).

4.1.3 Computer (Amber LED)

A flashing LED indicates data being sent to SYSTEM 3500. The LED should flash
at least once every 30 seconds or more.

4.1.4 Printer (Amber LED)

A flashing LED indicates data is being sent to parallel line printer.

4.2 REDUNDANT OPERATION

Redundant operation can take several forms. When using a redundant head end, one
dual-line DDI-9E can be installed on each of the redundant units. The online unit will
answer the phone. The backup unit will be in standby. Both DDI-9E units will have the
phone lines in parallel. Or, one dual-line DDI-9E may be used between the redundant
SYSTEM 3500/3000 units. Simply route the RS-232 signals via the T-Bar so that the
online unit has access to the DDI-9E.
Fire code requires two phone lines to the monitoring equipment.
3500/3000 units with DDI-9E, if the first phone line is unable to make a connection, the
phone automatically hunts to the second phone line. (Please note: The hunt feature is
provided by your local phone company, not Digitize, Inc. equipment.).
DIGITIZE, INC 700236-0001 REV. A
←
121-F9 Secure
←
Condition Secured
←
Date and Time
←
Actual Data Sent to SYSTEM 3500/3000 From Digital
121-E9
On SYSTEM
4-2