Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド
2-10
Installing Trim Networks
741338 Rev D
Installing a Trim Network in a SAII, SAII+ & SAIII
Procedure
Follow the procedure to install a trim network in a System Amplifier II, II+ or III
(SAII, SAII+ SAIII) module.
1.
Open the SAII, SAII+ or SAIII housing.
2.
Open the SAII, SAII+ or SAIII module cover.
3.
Switch the AGC to THERMAL.
4.
Record the RF output levels.
Note: The trim network location is labeled FWD TRIM/PAD on the printed
Note: The trim network location is labeled FWD TRIM/PAD on the printed
circuit board.
5.
Using a wire cutter or snips, carefully cut the bus wire jumper as close to the
circuit board as possible.
6.
Remove the jumper wire from the module using needle-nose pliers.
Note: Do not let the loose cutting fall into the amplifier.
Note: Do not let the loose cutting fall into the amplifier.
7.
Ensure the pins are straight and clean on the trim network.
8.
Insert the trim network into the FWD TRIM/PAD socket.
Be sure all the pins on the trim network bottom align with the pin holes in the
Be sure all the pins on the trim network bottom align with the pin holes in the
FWD TRIM/PAD socket, allowing the trim network to install flat against the
module.