Powerware Model V-2000B - Manual (Page 41)

Basic Operations = 39
Recording
Video recordings are made on the Image Server using the Channel 1 section of the graphic user
interface, or an external automation system. Channel 1 can also be used for playback when not
recording.
Setting up to Record
Image Servers were designed for use in genlocked facilities. Both the server and video sources
feeding it must be referenced to a common sync reference. This signal should conform to RS-
170 (composite video, black). When a genlocked source is not available, as in the case of
satellite receivers or non-professional tape machines, a frame synchronizer can be used to
create a synchronous source. 1 Alternatively, the video output of a stable source can be
connected to a distribution amplifier and applied both to the server genlock input and to its
video input.
Several steps must be taken before making a recording on the Image Server:
1. A genlock signal must be applied to the rear panel Genlock connector. The server will not
enter record mode if it does not detect the presence of a genlock signal. The genlock input
has a fixed 75-ohm termination. Do not add another termination at any point on the
genlock cable.
2. The external genlock signal must be selected as the sync reference, using the On-Screen
user interface.
A. When working from the Serial Inputs, check the box marked SERIAL CONTROL.
B. Eject any clip in Channel 1 and verify that the status window displays IDLE.
C. From the main menu bar select CONFIGURE>SYSTEM.
D. Select GENLOCK as the sync source.
E. Click APPLY followed by OK. The Configure window will close.
F. Check that the front panel GENLOCK LED is now illuminated.
Note: The INTERNAL sync reference setting (a crystal) can be used for playback, but not
for recording.
3. A genlock signal must also be connected to equipment originating the video signal to be
recorded on the Image Server. (See introductory paragraph of this section if there is no
provision for a genlock signal.)
1 Video frame synchronizers are available from a number of manufacturers from about $800.