Troubleshooting guide

MX2820 System Manual
7-46 61186003L1-1D
TOOLS REQUIRED
Depending on the method being used, the following tools are required:
DS1 Daisy-chain to DS3 (Hard) Loopback
• DS1 test set capable of running a Bit Error Rate Test (BERT)
• 28 mini Bantam test cords
• DS3 test cord
DS1 to DS3 “Head-to-Head” Test
• DS1 test set capable of running a BERT test
• DS3 test set capable of accessing and running a BERT on a single DS1
DS1 to DS3 (Hard) Loopback
• DS1 test set capable of running a BERT test
• DS3 test cord
WARNING
To prevent electrical shock, do not install equipment in a wet loca-
tion or during a lightning storm.
CAUTION
Electronic modules can be damaged by static electrical discharge.
Before handling modules, wear an antistatic discharge wrist strap
to prevent damage to electronic components. Place modules in
antistatic packing material when transporting or storing. When
working on modules, always place them on an approved antistatic
mat that is electrically grounded.