Chassis Configuration Settings
GARD 8000 SYS RFL Electronics
April 1, 2012 7-22 973.334.3100
Remote Service enables the “8K Remote Interrogation” feature of a TPS Channel. This is a
communication scheme between local and remote GARD 8000 controllers that runs at 8kHz, and is
only used if a dedicated 64K communication channel is not available for Remote Interrogation. The
“8K Remote Interrogation” data is transparently transmitted and received within TPS channel
messages over a single 64K communication channel. A maximum of two communication paths per
chassis are available (dedicated 64K or 8K), regardless of the number of TPS channels. You can have
one path on each of the two Comms Buses, or both paths on one of the Comms Buses. The TPS
channel must first be assigned in the “Communication Time Slot Configuration” web page
(Figure 7-19) before remote service can be changed from Disabled to either Comm0 or Comm1 as
shown in Figure 7-13.
Ping Pong Limit
Can be set from 1 to 31 ms. Enter the one-way channel delay threshold, which must be exceeded for
alarms to be indicated.
Tx Address
Enter the transmitter address for this TPS channel, between 0 and 255.
Minor Hardware Alert
This is a status indication of a Minor Hardware Alert. Can be either Green, indicating no alert, or Red,
indicating alert. If Red, refer to the status page for more information. Alerts are triggered by:
1. Incorrect address
2. A bad frame
3. A failed ping-pong due to:
a. Actual ping-pong value has exceeded the threshold setting
b. The remote end has not responded
c. The ping-pong has timed out.
Tx Comms Bus
This is a status indication of which Comms Bus is being utilized for Tx communication, Comms Bus 1
or Comms Bus 2.
Rx Comms Bus
This is a status indication of which Comms Bus is being utilized for Rx communication, Comms Bus 1
or Comms Bus 2.
CRC Errors Per Second
This indicates the number of CRC errors detected in the previous second. A maximum of 2000
messages can be received per second in error. This will give the user the current condition of the
channel even if the other two counters are maxed-out. The CRC covers ONLY the 8 function bits
received in the message. It does not cover address, framing bits, ping-pong, or Remote Interrogation
bits.
CRC Errored Seconds
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