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7845CZ Installation and Setup Guide
Bar Graph Indications
Signal Strength:
Viewed with the cover removed (refer to the "Removing the Cover" paragraph in Section 3),
this display consists of one yellow and four green LEDs arranged in a bar graph. It indicates
the signal strength at which the 7845CZ is receiving the local cell. The display is intended as
an installation aid for determining a suitable mounting location. Refer to the "Selecting a
Radio Installation Site" paragraph in Section 4 for an explanation of its use.
Power-Up:
During power-up, the bar graph LEDs are used to monitor radio initialization, and are read
from right to left. Refer to the "Initial Power-Up Sequence" paragraph in Section 4 for
details.
Registration:
The bar graph display also monitors the radio's registration progress. Refer to the
"Registering the Radio" paragraph in Section 6 for detailed information.
7–2
LED
PATTERN
Red
Lit
Periodic blinking
Blinking rapidly,
continuously
Blinking rapidly,
briefly
All
Lit
Rapid chaser
Slow chaser
Slow blinking in
unison once/sec
MEANING
No network contact / RF fault or alarm was not
successfully transmitted before the old alarm time
expired.
Loss of Communication
•
With panel in: 1) ECP Mode
2) 4204 Emulation Mode
•
With 4229 in: 1) 4229 Mode
RF fault (unsuccessful transmission) AND ECP fault
Transmit error. The transmission attempt was
unsuccessful due to a busy cell system, poor signal or
Current Limit Mode.
Power on, or LED Test
Power-on reset condition
Program mode accessible, radio previously
programmed
Program mode accessible, radio previously
unprogrammed
(if supervision is enabled), or
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