Datum Systems M7 Series - Figure 1-14 - Dual G.703;E1 Interface (G7)

M7/M7L/M7LT Modular Satellite Modem Operation
M7/M7L/M7LT - Rev. 0.05 1-17
Figure 1-14 - Dual G.703/E1 Interface (G7)
The Full E1 mode allows for transmission of a 2.048Mbps input data stream without synchronizing to
the imbedded framing of the E1 signal. In this case the port data rate though the satellite link is the
full 2.048Mbps of the E1 transport stream.
NOTE: In Unframed E1 there is no requirement for G.704 framing.
The G7 interface provides these key features:
 Single or Dual port G.703/E1
 Unframed & Fractional E1 operation
 Balanced or Unbalanced operation
 Data rate: 2.048Mbps
 Fully transparent signal conversion under unframed mode
 Clock Regeneration from incoming HDB3 or AMI formatted data
 Diagnostic Loopbacks for both Terrestrial and Satellite side
The G7 interface provides E1 alarm monitoring for all common E1 transport stream alarms:
 LOS Loss Of Signal. (All Modes)
 AIS All 1's at input port. (All Modes).
Refer to Table 3-11 for front panel configuration and Section 0 for technical information on this
interface option.