Mpu installation and testing, Dlp-502 – ADC Soneplex Broadband System User Manual
Page 53
ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
2-30
© 2000, ADC Telecommunications, Inc.
DLP-502
Page 1 of 2
MPU INSTALLATION AND TESTING
Summary:
This procedure provides instructions on unpacking and installing a new MPU in a
non-provisioned chassis, and then verifying that it is functioning properly.
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:
When installing a new MPU module, use the same DIP switch settings on
the MPU’s printed circuit board as the DS3 MUX’s DIP switch settings. Keeping
both switch settings the same enables communication between the MPU and the
DS3 MUX for OAM&P.
Note:
When replacing an MPU in a configured chassis, the configuration data
from the modules in the chassis is automatically loaded into the new MPU. If an
MPU from a provisioned chassis is moved to another chassis, the chassis unit
configurations may not match the MPU unit configurations, resulting in alarms
and erroneous information. Refer to DLP-519 (Replace MPU and Verify Stand-
Alone Operation) for more information.
1. Open the shipping carton and carefully unpack the MPU from its protective packaging.
Note:
DO NOT change any DIP switch settings on the printed circuit board of the
MPU; this could make the MPU incompatible with your Soneplex Broadband system.
2. Refer to
for a drawing showing the MPU module slot in the chassis. Align the
edges of the printed circuit card with the card guides in the chassis.
3. Using the ejector, push the MPU into the slot marked MPU located in the lower right
corner of the chassis until it is firmly seated in the connector. If there is excessive
resistance, remove the module and check for improper alignment or obstructions.
4. Use the screw to secure the MPU to chassis.
5. Refer to
for a drawing of the MPU front panel. Verify that STATUS indicator
lights red, then yellow, and then remains green.
6. If STATUS indicator is not lit (i.e., green), check for A and B power at the connections on
the backplane.