Harmonic Electra 1000, Руководство по установке

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© 2012 Harmonic Inc. 65 Electra 1000, Version 3.0, Rev M
Appendix G
RF Input Card
This appendix contains specifications for the RF Input card.
The RF Input card is a four channel ATSC 8VSB receiver. It receives four independent ATSC
8VSB signals on its inputs and outputs four MPEG-2 Transport Streams over the chassis
internal bus to one or more FLEX decoding modules. The RF Input card does not support
analog demodulation.
The RF Input adapter can be managed by either NMX or the Stand-alone GUI (SAG).
Figure G-
1
on page 65 shows a diagram of the rear panel.
Figure G-1: RF Input card
The LED lights show status, as shown in
Table G-1
on page 65.
G.1 RF Specifications
The RF specifications for the card are listed below.

VSB Input: 4 Type ‘F’ connectors, per IEC 60169-24

Tuning Range: VHF/UHF (Channels 2-59)
NOTE: Tuning range is limited to Channels 2 to 59 by software, per the FCC/Industry Canada decisions to
release channels 60 to 69 for public safety use.

Sensitivity: --83 dBm/6 MHz

Dynamic Range: > 80dB
Table G-1: LED status lights
Display Status
Off Port disabled
Blinking Yellow Loss of synch
Red Packet error rate (PER) threshold exceeded
Steady yellow SNR below threshold
Green Port Enabled, no alarms