Comtech EF Data SNM-1001L - Manual (Page 46)

SNM-1001L Satellite Modem Revision 1
Installation MN/SNM1001L.OM
2–6
2.3.2 Turbo Codec Installation
The Turbo Card is installed in the same slots as the Reed-Solomon PCBs. While the Reed-
Solomon uses two cards (TX and RX), the Turbo Codec uses only a single card.
CAUTION
DO not mix Reed-Solomon PCBs with Turbo PCs. 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 Turbo Codec PCB and mounting hardware from the cardboard caddypack
and anti-static material. Check the packing list to ensure the shipment is complete.
2. Inspect the Turbo PCBs 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 Turbo Codec PCB as a daughter card on the main
PCB.
Refer Figure 2-3 for installation location of the Turbo Codec PCB.
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.Remove the rear panel retaining
screws. Using the finger pulls, slide the main modem assembly out from the rear of the
modem chassis.
2. If required: Reed-Solomon Removal – Remove the Reed-Solomon boards from the
SIMM sockets by pushing the spring clips outward while rocking the board vertically,
then lift the board out.
3. Turbo Codec Installation - Align the Turbo board with either of the SIMM sockets
while holding it vertically with components toward Rear panel. Seat the connector into
the socket and tilt the board toward the Front Panel until the spring clips lock the board
into place.
4. Replace the top cover and reinstall the two side screws.