Service manual

Network input
A-5
A
DS3 input Number of inputs 2 high impedance inputs.
Maximum number of decoders in the same link 5 within stated specifications (a
maximum of 60 cm cable between
the units).
Connector type 75 Ω BNC female.
Input impedance 75 Ω unbalanced using external
75 Ω termination.
Minimum input level -12 dB at 22,368 MHz.
Return loss According to ITU-T Rec. G.703.
1100 to 2200 kHz > 12 dB
2200 to 45000 kHz > 18 dB
45 to 67 MHz > 14 dB
Input jitter acceptance According to TR-NWT-000499,
Issue 5, 1993, figure 7-2:
10 Hz to 2.3 kHz 5 UI
pp
2.3 to 60 kHz > 20 dB/decade Roll off
60 to 300 kHz 0.1 UI
pp
Optional SDH pointer adjustment suppression
AIS detection According to DVB TM1664.