Comtech EF Data SDM-9000 - Manual (Page 168)

Maintenance SDM-9000 Satellite Modem
6–10 Rev. 4
6.1.4 Test Points
This section lists the interface, modulator, and demodulator PCB test points that can be
accessed from the front panel. The list includes a signal description under normal
operating conditions.
6.1.4.1 Interface PCB
Refer to Figure 6-5 for G.703, ECL, and MIL-STD-188 test point locations.
Test Points
ECL/MIL-
STD-188
(AS/4477)
G.703
(AS/3971,
AS/5618) Signal Name
TP12 TP6, 11 GND
Ground
TP14 TP3 RX MFS
Receive Sub-Frame Sync (overhead only)
TP11 TP8 TX MFS
Transmit Sub-Frame Sync (overhead only)
Figure 6-5. Interface PCB Test Points