Appendix C: RS-422 VTR Interface
RS-422 Interface Kit Assembly and Installation
326
Lightspeed Live Capture User Guide
Configuring an RS-422 COM Port's Latency Time
The RS-422 COM Port configuration is set at the factory prior to product shipment.
However, if new drivers are installed or a new USB to RS-422 Interface Box is used the
latency value may not persist and should be reconfigured to 1 msec.
Follow these steps to set each USB Serial Port’s Latency Timer value to 1 msec:
1.
Open Device Manager on the Lightspeed Live Capture server.
2.
Click on Ports > USB Serial Port.
3.
Select the first USB Serial Port, right-click and select Properties.
4.
Select the Port Settings tab and click on Advanced. The Advanced Settings dialog
opens (see below).
5.
Change "Latency Timer" from 16 to 1 msec and click OK.
6.
Repeat steps
c
to
e
for the remaining three (3) USB Serial Ports.
7.
Close Device Manager.
