Tau Installation And Testing - ADC Soneplex Broadband System Operation And Maintenance Manual

ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
DLP-574
Page 1 of 1
Summary: This procedure provides instructions for installing the Test Access Unit (TAU) in the
chassis and verifying that it is functioning properly. The TAU requires no provisioning or
periodic maintenance.
Caution: Modules can be damaged by electrostatic discharge (ESD). Before handling
any modules, ESD protection must always be used. An ESD grounding post is located on
the chassis for connecting the ESD wrist band. Ensure that all modules removed from
the equipment or not installed, are properly stored in anti-static packing material. When
working with modules, always place the module on an electrically-grounded, approved,
anti-static mat.
Note: For information about installing and testing the TAU, which is used with MPU
Software Version 5.3, refer to the Soneplex Test Access Unit Installation Instructions
manual, listed under Related Publications at the beginning of this manual.
1. Remove the TAU from its protective packaging.
2. Insert the TAU into the full height chassis slot labeled TAU (as shown in
until it reaches the backplane connector.
3. Using the ejectors, fully seat the TAU in the chassis. A moderate amount of force may be
required to properly seat the module in the backplane connector.
4. Did the STATUS indicator light green?
• If Yes, you have completed this procedure.
• If No, replace the TAU and return to Step 1.
Stop! You have completed this procedure.
HSP
HSW MXW
STATUS
LPBK
ENABLE
ONLINE
DS3 FAIL
APS LOCKOUT
FORCE
LMPTST/
APS
RESET
Figure 574-1. TAU Mounting Position in the Soneplex Broadband Chassis
2-238
© 2000, ADC Telecommunications, Inc.

TAU INSTALLATION AND TESTING

1-1 1-3 2-1 2-3
MXP TAU
TAU
STATUS
LPBK
DS3 FAIL
ENABLE
DS3 FAIL
ONLINE
DS3 FAIL
DS3 FAIL
DS3 FAIL
APS LOCKOUT
FORCE
LMPTST/
APS
RESET
1-2 1-4 2-2 2-4
TAU MODULE
3-1 3-3 4-1 4-3 5-1 5-3 6-1 6-3 7-1 7-3
3-2 3-4 4-2 4-4 5-2 5-4 6-2 6-4 7-2 7-4
Figure 574-1)
APU
CR
MJ
MN
ACO
PWR
HSKP
RMT
ALM
DISP RMT
LMPTST
APU
STATUS
RESET
MPU
5841-A