Polycom SoundStructure C16 Design Manual page 667

Description
This parameter causes the front panel LED of the specified device to cycle
through its colors (yellow-red-green-off) for the specified number of seconds.
dev_ntp_server
Argument Argument value
Channel Type Device-Specific System
Value Type String
Read/Write Mode Read/Write
System Limits Max String Length: 32
Default pool.ntp.org
Event Source No
Description
This parameter gets or sets the name of the network time protocol (NTP)
server used to set the system time. A power cycle is required for this parameter
to take effect.
dev_status
Argument Argument value
Channel Type Device-Specific System
Value Type List
Read/Write Mode Read-Only
ok : Normal operation
Values warning : Warning condition
error : Error condition
Event Source No
Description
This parameter returns the status of the system. A value of ok indicates that the
system is operating normally. The front-panel LEDs on all the devices will be
green in this condition. A value of warning indicates that a warning condition
has occurred. A warning condition is usually due to a configuration error that
can be corrected via software. The front-panel LEDs on all of the devices will
be yellow in this condition. A value of error indicated that an error has
occurred that is most likely due to a hardware failure or some other serious
condition that can't be corrected via software. The front-panel LEDs on one or
more of the linked devices will be red in this condition.
Command Protocol Reference Guide
NTP Server
System Status
A - 151