Sierra Video Pro XL Series 8 - Manual (Page 24)

SIERRA VIDEO
18
Sync Input
There are two BNC connectors labeled "VID. REF. IN". This is a "looping" input for sync
referencing. Connect either composite sync or video with sync to either BNC. If desired, use the
second BNC to loop the signal to another device. If the loop is not used, terminate the second
BNC with 75 ohms. If no sync is available, the routing switcher will switch at a random point
rather than during the vertical interval of the reference signal.
AC Power Connections
PRO series routing switchers offer redundant power supplies but must be specified prior to order.
The power supplies are universal AC inputs. Voltage selection is not necessary because the
power supply senses the correct AC input automatically.
The Sierra PRO models use a power switch located on the rear of the frame. Turn on power to
the frame ONLY AFTER all video and control connections have been completed as described
below.
Control Processor Dip Switch Settings
Your switcher has been configured at the factory for the settings you are most likely to need.
However, if you want to configure the switcher differently, you can do so by setting the switches
located on the processor board (behind the front panel). Dip Switches and their action are given
in the table that follows. Dip Switches are shown in their factory default settings.
OFF
S1
ON
0 1
Note:
Changing any Dip Switch causes an automatic reset after a few seconds.
Force router reinitialization to empty configuration settings:
0= Normal, 1= reinitialize
Software download:
0= normal operation, 1= download new software and
burn flash
Master/Slave Moode:
0= Master, 1= Slave.
Force crosspoint initialization:
0= restore previous xpoints, 1= set xpoints to 1-1, 2-2, etc.