Interface Checkout; Figure 8-1. Fault Isolation Test Setup - Comtech EF Data SDM-300L3 Installation And Operation Manual

SDM-300L3 Satellite Modem
System Checkout

8.1.1 Interface Checkout

Use the following procedure and the test setup in Figure 5-1to inspect the interface.
1. Connect a BER test set to the appropriate modem data connector.
2. Set up the modem for baseband loopback operation by using the Configuration Interface
front panel menu . The modem will run error free.
3. Change the modem from baseband loopback to interface loopback operation by using the
Configuration Interface front panel menu. The modem will run error free.

Figure 8-1. Fault Isolation Test Setup

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