User guide

PTP 800 Series User Guide Replacing IRFU components
phn-2513_004v000 (Oct 2012)
5-97
Before replacing IRFU components, check that the required tools are available (Table
219).
Table 219 Tools required for IRFU component replacement
Item Required specifications Where used
Screwdriver Phillips #1, small tip For installing a fan assembly
Screwdriver Phillips #2, medium tip Throughout
Ball-point allen key 7/64 For installing filters
Open-end wrench 5/16
For installing a transceiver
and RF cable
SMA torque wrench
w/right-angle adaptor
Model ST-SMA8, (from
Fairview Microwave Inc.)
Standard torque
wrench
5/16, set to 0.1 kg•m
(9.0 lb-inch)
Replacing a transceiver
When replacing a transceiver, refer to Figure 111.
In an unprotected link, this procedure will affect traffic. In a 1+1 Hot Standby link,
ensure that traffic is locked on the available channel during maintenance.
Ensure that the new transceiver has the same part number as the discarded one.