User Manual

UBS Macro B T S FRU R eplacement Preview Chapter 1: Ov erview
Table 1 -2 FRU replacement conditions and sequence (Continued)
FRU Location Replacement conditions and sequence
XMI
(Transceiver
Module
Internal)
Module
UBS Macro frame FRU is non-redundant.
1. Lock XMI
2. Shutdown DC input power to XMI
3. Replace XMI
4. Apply DC input power to XMI
5. Unlock XMI
6. Shut down signaling to Site (for calibration/audit) or
set up optional In-Service Calibration procedure
7. TX P ath Calibration Audit test all TX paths. RS SI test
all RX paths
8. Restore signaling to Site if In-Service Calibration
procedure was not used
XMI F an Tray
Assembly
UBS Macro frame, XMI
rear panel
See XMI Module above.
DMI (Digital
Module
Internal)
Assembly
UBS Macro frame
The DMI assembly is the FRU that can be used to
replace a DMI with an internal DMI component
failure (including controller board, modem board,
fan, or front panel failure).
1. Display BTS EID information to determine model
numbers of the failed DMI and its modem board(s).
2. F or a BTS with one DMI, Shut down signaling to Site .
F or a BTS with more than one DMI:
Status failed DMI to determine if Site Master or
not
If Site Master , Reset DMI and then Lock DMI
If not Site Master , Lock DMI
3. Shutdown DC input power to DMI
4. Replace DMI
5. Apply DC input power to DMI
Continued
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FOA SEP 2007