60
System Maintenance
Ref #: [00040316]
Panel Battery Trouble –
Panel Battery Trouble –Panel Battery Trouble –
Panel Battery Trouble – This code will be sent when the con-
trol panel battery is low, disconnected or if the battery fuse
fails. The Battery Trouble Restoral reporting code will be
sent when the condition is cleared.
Panel AC Trouble –
Panel AC Trouble –Panel AC Trouble –
Panel AC Trouble – This code will be sent when the AC
power to the control panel is disconnected or interrupted. To
prevent communicating the trouble in the event of short
power failures, the code will not be sent until the AC Failure
Communication Delay has expired. When the trouble is
restored, the AC Line Trouble Restoral reporting code is sent.
Panel Bell Trouble –
Panel Bell Trouble –Panel Bell Trouble –
Panel Bell Trouble – This code will be sent when a bell trou-
ble occurs. This is when an open circuit is detected across
the bell terminals. When the trouble condition is restored,
the Main Bell Trouble Restoral reporting code will be trans-
mitted.
Panel AUX Trouble –
Panel AUX Trouble –Panel AUX Trouble –
Panel AUX Trouble – This code will be sent when an auxil-
iary voltage supply trouble occurs. When the voltage sup-
ply is restored, the Main Auxiliary Trouble Restoral code
will be sent.
*
**
*TLM Failure –
TLM Failure –TLM Failure –
TLM Failure – If a LINKS unit is being used, this reporting
code will be sent through the LINKS when a Telephone
Line Monitoring trouble occurs. The TLM Restoral code
will be sent when the condition is cleared.
NOTE: Do NOT program this code if a LINKS unit is not
used. The TLM Failure Line 2 Trouble and Trouble Restoral
reporting codes will be sent when a similar condition occurs
on a second telephone line.
*NOTE: LINKS1000 for residential use only.
GND Fault
GND FaultGND Fault
GND Fault Trouble –
Tro uble –Tro uble –
Trouble – This reporting code will be sent when
the earth ground connection detects a ground fault. The
Ground Fault Restoral reporting code will be sent when the
earth ground fault connection is restored.
NOTE: The PC4020 EGND terminal must not be connected
to the Combus ground. Connecting earth ground to the
Combus ground will interfere with system performance
and generate a Ground Fault Trouble.
Periodic Test –
Periodic Test –Periodic Test –
Periodic Test – This is the reporting code that is sent to the
monitoring station to test communications (see Section 10.8
“Test Transmissions”).
Periodic Test UL –
Periodic Test UL –Periodic Test UL –
Periodic Test UL – This test transmission code is sent
instead of a Periodic Test Transmission if a Fire Trouble is
present on the system at the time.
General System Trouble –
General System Trouble –General System Trouble –
General System Trouble – This code will be sent when one
of the following conditions occur. The code will be trans-
mitted for the first trouble condition only.
• PC4204/PC4204CX, PC4820 AC Trouble / restoration
• PC4204/PC4204CX, PC4820 Battery Trouble / restora-
tion
• PC4204/PC4204CX, PC4820 Aux Supply Trouble
• PC4400 Trouble
•DVAC Trouble
•Automation Fault
• PC4164-RS Signal Trouble (RF Jam)*
The General System Trouble Restoral reporting code will be
sent when all the trouble conditions are cleared.
*NOTE: Residential use only.
20.18Upload/Download Considerations
The PC4020 system is capable of being uploaded or down-
loaded over the public switched telephone network, or on
site using the PC-Link. Prior to the final verification of sys-
tem operation, uploading/downloading may be performed
as required.
Once the system has be approved by the AHJ (Authority
Having Jurisdiction), uploading/downloading can be done
observing the following:
1. Remote control (via downloading) of any part of the
system is not allowed (e.g. sensor reset, signal silence,
zone bypassing, trouble silencing)
2. If programming changes are to be made from a remote
location, a qualified individual must be on site to verify
that system operation is not impaired.
3. Downloading should only be initiated from the site.
The User Enabs DLS
User Enabs DLS User Enabs DLS
User Enabs DLS system toggle option is enabled by
default. This option will prevent any downloading from
occurring without a user initiating downloading on site.
4. If an alarm occurs during a uploading/downloading
session, the system will disconnect the downloading
computer and activate the system as programmed and
will communicate normally to the central station. If a
computer is connected via the PC-Link, the system will
function as programmed but an alarm will not be com-
municated to the central station until the PC-Link con-
nection is removed.
NOTE: If a DLS communication was ended abnormally, the
panel will annunciate a DLS Fault trouble. The trouble will
only restore after DLS has re-connected to the panel and
disconnected properly.
NOTE: If during the downloading of system programming
changes – either remotely or locally – an alarm occurs, the
system may not function as intended, depending on
whether the downloading was completed before the
alarm. It is imperative that system operation be veri-
fied after any programming change.
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