Ericsson AVP 1000 - External Sync Input Option Card

Options, Licensing and Upgrades
EN/LZT 790 0023/1 R16A
7-19
Figure 7.8 G.703 Transceiver Card
7.6.2 Interfaces
The G.703 Transceiver option card has the following interfaces for connecting to a
PDH network:
• One 75 Ω female BNC input connector (not supported in this release).
• One 75 Ω female BNC output connectors. The output can be configured to
receive any TS generated in the unit, or passed through from an ASI input.
7.7 External Sync Input Option Card
7.7.1 General
With the External Sync Input option card the internal 27 MHz System Clock
Reference of the unit can be locked to an external clock source. The synchronizing
signal is input via a 75 Ω female BNC connector on the rear panel. The unit can be
configured to lock to either a PAL or NTSC black burst signal, or a 1 V peak to peak
10 MHz reference.
If the input is a black burst signal, the horizontal sync information is extracted and
passed to the Host Controller Card. If the input is a 10MHz clock signal, it is directly
passed to the Host Controller card.
Figure 7.9 External Sync Input Option Card
7.7.2 Interfaces
The External Sync Input option card has the following interface:
• One 75 Ω female BNC input connector for connecting a 10 MHz 1V
pp
reference
signal or an analogue video signal.