ADC Telecommunications Inc. PSM25TDLS Benutzerhandbuch

Open the Remote Unit enclosure.

Remove release liners, if present, from the thermal pads on the RF Module prior to installing the module into
the Remote Unit chassis.

For Single- and Dual-Bay RF Modules, the thermal pads are located as listed below and as shown in

,

which shows a Legacy Dual-Bay 40W RF Module.

one large pad on the back surface of each Linear Power Amplifier (LPA)

up to two on the front surface (DARTs)

one on the left side for the (RDI)

one on the vector modulator board

one on the RF power combiner.

Figure 19. Thermal Pads on a Legacy Dual-Bay 40W RF Module

One large

thermal pad on each PA

(boom of the LPA)

One thermal pad

for the RDI

One thermal pad

for each DART

One thermal pad

for each DART

One thermal pad

for RF Power

Combiner

One thermal pad

for Vector

Modulator