Topaz Router
Revision 2.0 Page 9
SW1-7 Up/On = RS232.
Down/Off = RS422
SW1-8 QT-SD: Up/On = Self Test Off. Down/Off = Self Test On
QT-HD: Up/On = Tri-Level Sync. Down/Off = Analog Sync
QT-AA: Up/On = Self Test Off. Down/Off = Self Test On
QT-AV: Up/On = DC Restore On. DC Restore Off
Note on earlier Topaz SD units, those without an Ethernet connector, SW 1-4 has a different function:
SW1-4 Up/On = Use last crosspoint settings at power up
Down/Off = Force all outputs to specified input
Topaz units which provide Ethernet support always power-up with the last crosspoint settings; this is no
longer an option and therefore cannot be changed.
2.5.2. Q-Link Address Switches
The rotary hex switches are used to set the unique address of the router. The purpose of the switch
setting is to ensure that each router has a different code. This distinguishes different routers and
panels in a multi-frame system so each is identified uniquely and updated with the correct settings.
A small screwdriver is needed to fit the slot and make the selection. Rotate the switch, which has 16
positions from 0 through 9, then A to F (hexadecimal notation). The two switches together support the
address range from 00 to 3F.
2.5.3. TV Line Switching
2.5.3.1. Standard Definition Digital Video Router & Analog Video Router
Switching complies with the SMPTE RP-168 standard. SW1-6 is used to select the reference standard
used to synchronize the switching. It is also possible to choose whether to permit switching on every
TV field or only on the first field of each frame, which is important in some editing applications, using
SW1-5. For Standard Definition Digital Video Routers SW1-8 should be in the down position as bi-level
syncs have to be used for the correct switching point.
Function SW1-5
Field mode Up/On
Frame mode Down/Off
Function SW1-6
625 Up/On
525 Down/Off
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