RFL Electronics GARD 8000 - Figure 11-6. Local Loopback

Tests and Diagnostics
GARD 8000 SYS RFL Electronics
February 14, 2011 11-15 973.334.3100
Local Loop-Back:
The local loop-back function loops the data being transmitted to the remote terminal back on to the
receive portion of the digital interface module. The received data from the remote terminal is
interrupted. The transmit data from the local terminal is passed on to the remote terminal and
redirected to the local received data path. See Figure 11-6.
Figure 11-6. Local Loopback
If the digital interface module is Internally timed:
 Click on the “Local Loop-Back” button to enable.
 Click on “Execute”.
 Set the devices, TPS channels or Functional modules, TX and RX addresses to the same
value.
If the Digital interface is in Loop timing:
 Set the digital interface to internal timing on the settings page.
 Click on the “Local Loop-Back” button to enable.
 Click on “Execute”.
 Set the devices, TPS channels or Functional modules, TX and RX addresses to the same
value.
GARD 8000
Rx Data
TX
Data
TX Data
RX
Data
Digital Interface
Remote
Terminal