Plessey EasyReach, User Manual

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TROUBLESHOOTING EasyReach User Manual
20 1H90941
The system may be tested using a single E1 / T1 data stream by looping back
the data from the data output to the data input of the E1 / T1 port on one of the
units as shown above.
The following procedure provides a method of testing the system at one location
using an E1/ T1 data communications anaylser:
•
Set up the equipment according to Figure 6 by looping back the data at the
data port on one of the units, and connecting an E1 / T1 data
communications analyser to the E1 / T1 port of the other unit.
•
Switch on the power to the equipment at both ends of the link.
•
The four front panel LEDs should be green.
•
The E1 / T1 data communications analyser should indicate no errors.
Procedure using internal loopbacks to isolate the fault.
Figure 8 Location of internal loopbacks.
110/240
VAC
or
20 to 60
VDC
T1 DATA TERMINAL MANAGEMEN ALARM ANTENNA
TERMINAL
POWER
110/240
VAC
or
20 to 60
VDC
T1 DATA TERMINAL MANAGEMEN ALARM ANTENNA
TERMINAL
POWER DATA
RF AATTENUATOR
(50 dB MINIMUM)
ANTENNA FEEDER
Internal Data Path Internal Data Path
1 2 3
Follow the testing flow shown in Table 1 using the EasyReach Element Manager
software to place the radio into loopback at the locations shown in Figure 8.