Troubleshooting guide

61186003L1-1D 6-9
NTP-003
Clock Module Installation
INTRODUCTION
This NTP provides the tasks for installing the MX2820 Clock Module into a Central Office (CO)
shelf. Installation procedures include removal of the product from its packaging, inspecting
for damage, seating the unit in the shelf, provisioning the module, and acceptance testing.
NOTE
The Clock Module is only needed if the STS-1 application that
requires external timing is being deployed.
PREREQUISITE PROCEDURES
Before starting this procedure, determine if a 1:1 redundant configuration is being deployed.
Whether a redundant configuration is being deployed affects when the provisioning proce-
dures for the Clock Modules can take place.
The following procedures must be completed before installing the STS-1 MUX module. If
necessary, refer to the appropriate documentation before proceeding.
• “NTP-001, Shelf and SCU Installation”
• “DLP-506, Connect MX2820 Wire-Wrap Posts”
MATERIALS REQUIRED
• MX2820 Clock Module (two modules for 1:1 redundant system)
WARNING
To comply with NEBS fire test requirements for CO, hut, and vault
installations, vacant slots in the MX2820 shelf need to have blank
front panels installed.