Polycom VSX Series Administrator's Manual page 82

Administrator's Guide for the VSX Series
3 - 20
4. Select and configure these settings:
Setting
ST
RT
RTS
CTS
DSR
DCD
DTR
Answer on DSR
Delayed DCD Hangup
DTR Pulse Duration
(secs)
5. Select and configure these settings:
Setting
Crypto Resync
Use RTS Signal for
Resync Pulse
Time Between Pulses
(sec)
Pulse Width (millisec)
Description
Lets you specify the signaling required by the external
device connected to the system. Specify normal or
inverted, as appropriate. In most cases, normal signaling
is appropriate.
If your system is connected to Ascend equipment, you
may need to set CTS to Ignore.
Specifies that the system should begin the call when it
detects a DSR signal.
Specifies how long the system waits to end the call after a
DCD signal is lost (for example, during a call via satellite).
Specifies how long the DTR signal goes low after the far
site hangs up. When the pulse is too short, the call may
not clear.
If your system is connected to ADTRAN equipment, you
may need to adjust DTR pulse duration.
Description
Allows a VSX system connected to cryptographic
equipment to signal when it loses video synchronization
during a call. The cryptographic equipment can then
resynchronize with the far site.
Allows the system to send the resynchronization pulse on
the RTS signal. Select this setting if your data
communications equipment uses the V.35 or RS-449
capability of the serial V.35/RS-449/RS-530 network
interface.
Note: When you check this box, the RTS no longer
functions as the Request To Send signal.
Specifies whether the system should set the time between
resync pulses automatically or use the number of seconds
you enter.
Specifies whether the system should set the pulse
duration automatically or use the number of milliseconds
you enter.
www.polycom.com/videodocumentation