56034002 1/9/2006
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© 2006 Telular Corporation
5.4.1 Decide on a STC Trip Output Strategy
The Telguard provides the host C/C with one supervisory trip output for reporting a Telguard system
trouble code to the central station. The supervisory trip outputs are programmable via a touch-tone
telephone or butt-set to suit various installation requirements. The programming options for these
supervisory trip outputs can be any combination of the following:
a.
Always Off:
Disables all relay supervisory functions.
b.
ACFC:
Trips 2 hours after loss of AC power. Restores 60 seconds after AC power is restored.
c.
LBC:
Trips within 60 seconds on low battery condition. Restores when battery voltage
≥
12.1 vdc.
d.
NSC:
Trips 30/60-sec. on no service condition due to loss of RF signal strength. Restores 30/60
seconds after RF signal strength is available.
e.
RFC:
Trips on radio failure to communicate with the Telular Communication Center
5.4.2 Check Telguard Supervisory Trip to C/C
After you have connected the STC trip outputs, check to be sure that they operate correctly.
5.4.2.1 Reprogram C/C to Send Proper Code
Reprogram C/C, if necessary, to send proper alarm code when tripped by the Telguard’s supervisory
output. Program zone restoral as desired.
5.4.2.2 Check Proper Operation of Telguard Supervisory Output
Check for proper operation of each programmed supervisory output by causing it to trip the C/C and be
sure the proper LED illuminates and that the proper trouble code is reported to the central station. Skip
the testing of any supervisory functions that have not been enabled. Note that the yellow mode LED
starts to flash when the C/C goes off-hook to report the alarm signal over cellular.
•
Low Battery Condition (LBC)
: Disconnect the battery and during the next 60 seconds check to see
that the STC LED flashes 2 times indicating that the battery is missing. Check to see that the C/C
transmits the STC trouble code (over cellular) to the central station. Reconnect the battery and
check during the next 60 seconds to see that the STC LED goes off, indicating the missing battery
condition has been restored.
•
No Service Condition (NSC
): Disconnect the antenna from the Telguard. Check to see that the
STC LED flashes 4 times in 30/60 seconds and the C/C transmits the STC trouble code over the
telco line indicating loss of RF signal strength. Reconnect the antenna and check to see that the
STC LED goes off in 30/60-seconds indicating RF signal strength resorted.
•
Note:
The Received Signal Strength (RSSI) must be less than -114 dBm in order to cause a NSC
condition. If the Telguard is located in a high signal strength area (close to a cellular tower), it is
possible for the signal strength to be greater than -114 dBm even with the antenna disconnected.
•
AC Fail Condition (ACFC)
: Disconnect the 12VAC, 10VA transformer and check to see that the AC
POWER LED goes out and the STC LED flashes once indicating that AC power is missing.
Reconnect the AC transformer and check to see that the AC POWER LED goes on and the STC
LED goes off indicating that AC power has been restored. No transmissions will be sent to the
central station. The AC power must be off, continuously, for 2 hours before the STC relay causes
the C/C to send a trouble code. If the AC power is restored for 60 seconds or more, then the 2 hour
timer restarts.
5.5 S
TEP
5: C
OMPLETE THE
T
ELGUARD
I
NSTALLATION
Last step is to verify settings and permanently mount the Telguard.
5.5.1 Check
Settings
Check the jumper setting of J10 (LED mode, open = normal, shorted = RSSI mode).
5.5.2 Permanently Mount and Properly Ground the Telguard Chassis
Attach earth ground to the green grounding screw located on lower left-hand corner of printed circuit
board assembly and permanently mount the Telguard enclosure.
Install center-mounting screws (not supplied). Slide the enclosure onto this screw. Screw in the
remaining two screws in the bottom set of mounting holes.
