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889-3809-02
Model 2018E Operations Manual Rev Apr 2020 Page
16
of 39
2.6.1.8
OPTION SWITCH 8 – LED THRESHOLDS – LED THR
Configuration:
The setting of the LED Thresholds Enable (Option Switch 8 – LED THR) DIP switch determines
if this feature is active. The standard incandescent field display thresholds are selected when the switch is OFF.
The enhanced LED field display thresholds are selected when the switch is set to ON.
Operations Modified:
Conflict Monitoring
: Normal conflict testing senses Greens and Yellows as ON when their voltage is
above 25V
RMS
and OFF when below 15V
RMS
. Reds are ON when their voltage is above 70V
RMS
and
OFF when below 50V
RMS
. With LED thresholds, the monitor senses Greens, Yellows, and Reds as
ON when their voltage is above 25V
RMS
and OFF when below 15V
RMS
.
Red Fail Monitoring
: Normal red fail testing senses Greens, Yellows, and Walks as ON when their
voltage is above 25V
RMS
and OFF when below 15V
RMS
. Reds are ON when their voltage is above
70V
RMS
and OFF when below 50V
RMS
. With LED thresholds, the monitor senses Greens, Yellows,
Reds, and Walks are sensed as ON when their voltage is above 70V
RMS
and OFF when below 50V
RMS
.
Dual Indication Monitoring
: Normal dual indication testing senses Greens, Yellows, and Walks as ON
when their voltage is above 25V
RMS
and OFF when below 15V
RMS
. Reds are ON when their voltage is
above 70V
RMS
and OFF when below 50V
RMS
. With LED thresholds, the monitor senses Greens,
Yellows, Reds, and Walks as ON when their voltage is above 25V
RMS
and OFF when below 15V
RMS
.
Short Yellow Monitoring
: Normal short Yellow testing senses Greens, Yellows, and Walks as ON
when their voltage is above 25V
RMS
and OFF when below 15V
RMS
. Reds are ON when their voltage is
above 70V
RMS
and OFF when below 50V
RMS
. With LED thresholds, the monitor senses Greens,
Yellows, Reds, and Walks are sensed as ON when their voltage is above 70V
RMS
and OFF when
below 50V
RMS
.
Short Clearance Monitoring
: Normal short Yellow testing senses Greens, Yellows, and Walks as ON
when their voltage is above 25V
RMS
and OFF when below 15V
RMS
. Reds are ON when their voltage is
above 70V
RMS
and OFF when below 50V
RMS
. With LED thresholds, the monitor senses Greens,
Yellows, Reds, and Walks are sensed as ON when their voltage is above 70V
RMS
and OFF when
below 50V
RMS
.
Typical Use
: Once any LED field displays are installed, using LED Thresholds will provide better fault checking
by using voltage thresholds that are specifically suited to each type of test being performed.
2.6.2
OPTION JUMPERS
2.6.2.1
OPTION JUMPER 1 – DO NOT ALLOW 16 CHANNEL PROGRAM CARD – NO
CH16
Configuration:
The installation of the Do Not Allow 16 Channel Program Card (Option Jumper 1 – NO 16CH)
jumper determines if this feature is active.
Operations Modified:
Program Card Absent Monitoring
: When Do Not Allow 16 Channel Program Card is enabled and a
16 channel Program Card is installed, a
PC AJAR
fault will be generated with all three field
indications for channels 1 through 16 flashing.
Typical Use
: This feature is used to force the monitor to not accept 16 channel Program Cards when channels 17
and/or 18 are being used. Without it, the monitor will accept either type of Program Card.
2.6.2.2
OPTION JUMPER 2 – DO NOT ALLOW 18 CHANNEL PROGRAM CARD – NO
CH18
Configuration:
The installation of the Do Not Allow 18 Channel Program Card (Option Jumper 2 – NO 18CH)
jumper determines if this feature is active.
Operations Modified:
Program Card Absent Monitoring
: When Do Not Allow 18 Channel Program Card is enabled and an
18 channel Program Card is installed, a
PC AJAR
fault will be generated with all three field
indications for channels 1 through 18 flashing.
Front Panel Field Display
: When Do Not Allow 18 Channel Program Card is enabled, the channel 17
and 18 Red, Yellow, and Green field indications will not show the function disabled blip when a 16
channel Program Card is installed.
Typical Use
: This feature is used to force the monitor to not accept 18 channel Program Cards when channels 17
and 18 are not being used. Without it, the monitor will accept either type of Program Card.