Cisco Systems OL-8155-01 Security Camera User Manual


 
GL-15
Cisco IPICS Server Installation Guide
OL-8155-01
Glossary
S
scanning
A subscriber unit feature that automatically allows a radio to change channels or
talk groups to enable a user to listen to conversations that are occurring on
different channels or talk groups.
SDM
Security Device Manager. A web-based integrated router application, provides a
user-friendly GUI for configuring security features in Cisco routers.
Cisco IPICS uses SDM to configure voice ports and LMR functions on LMR
gateways.
secure flag
A PTT channel indicator that identities a channel as a secure PTT channel.
service delivery area
See coverage.
signal
The detectable transmitted energy that carries information from a transmitter to
a receiver.
skin
Skins form the appearance of the PMC. In Cisco IPICS, skins are customizable
and available in various options, including 4-channel and 8-channel mouse and
touch screen formats.
speaker arbitration
The procedure that is used to determine the active audio stream in a Push-to-Talk
system.
spectrum
The usable radio frequencies in the electromagnetic distribution. The following
frequencies have been allocated to the public safety community:
High HF 25–29.99 MHz
Low VHF 30–50 MHz
High VHF 150–174 MHz
Low UHF 406.1–420/450–470 MHz
UHF TV Sharing 470–512 MHz
700 MHz 764–776/794–806 MHz
800 MHz 806–824/851–869 MHz.
squelch
An electric circuit that stops input to a radio receiver when the signal being
received is too weak to be anything but noise.