Comtech EF Data SDM-300L3 - Manual (Page 42)

SDM-300L3 Satellite Modem Revision 1
Installation/Upgrades MN/SDM300L3.IOM
2–6
2.3.2 Reed-Solomon PCB
The Simplex TX/RX Reed-Solomon and Duplex Reed-Solomon PCBs are installed in the
same slots as the Turbo module.
CAUTION
Do not mix the Simplex Reed-Solomon PCBs with Turbo PCB or the Duplex
Reed-Solomon PCBs. Damage to the equipment may be the result.
2.3.2.1 Unpacking
CAUTION
This equipment contains parts and assemblies sensitive to damage by ESD.
Use ESD precautionary procedures when touching, removing, or inserting
PCBs.
1. Remove the Reed-Solomon PCB and mounting hardware from the cardboard
caddypack and anti-static material.
2. Check the packing list to ensure the shipment is complete.
3. Inspect the Reed-Solomon PCB for any shipping damage.
2.3.2.2 Installation
The following tool is required to install the overhead interface PCB:
Description Application
Phillips  Screwdriver To remove and replace cross-point screws.
Use the following information to install the Reed-Solomon Codec PCB as a daughter
card on the main PCB.
Refer Figure 2-3 for installation location of the Reed-Solomon daughter card.
CAUTION
Turn the power off before installation. High current VDC is present. Failure
to do so could result in damage to modem components.
1. Turn off the modem and unplug the power supply.
2. Remove the rear panel retaining screws. Slide the modem assembly out from the
top cover assembly.
2. Install the Reed-Solomon PCB to the main PCB by mating the male SIMM
connectors with the female SIMM connectors in the position shown in
Figure 2-3