Download Comtech EF Data Vipersat CDM-570 User guide

RS-232
A common electrical/physical standard issued by the IEEE used for point to
point serial communications up to approximately 115 kb/s.
RTP
Real-time Transport Protocol – A standardized packet format for delivering
real-time applications such as audio and video over the Internet. Frequently
used in streaming media systems, videoconferencing, and VoIP.
Rx
Receive
S
SCPC
SIP
Single Channel Per Carrier – A satellite communications technique where an
individual channel is transmitted to the designated carrier frequency. Some
applications use SCPC instead of burst transmissions because they require guaranteed, unrestricted bandwidth.
Session Initiation Protocol – A general purpose protocol for multimedia
communications, commonly used for voice over IP (VoIP) signaling. An alternative to the H.323 protocol.
SLM
Satellite Link Modem (CEFD model designator; e.g., SLM-5650A)
SNG
Satellite News Gathering – A satellite uplink van/truck with television crew on
location conducting a live report for a newscast.
SNMP
Simple Network Management Protocol – A protocol defining how devices from
different vendors may be managed using a common network management
system.
SOTM
SatCom-On-The-Move – The ability of a mobile remote terminal to roam
across satellite beams to preserve link integrity and to automatically connect
from one satellite and/or hub to another in a global network.
Star
Topology
A network topology which, if drawn as a logical representation, resembles a star
with a hub at the center.
STDMA
Selective Time Division Multiple Access – A multiple access technique where
users time-share access to a common channel with variable-sized time slots
allocated on usage.
Streamload
Protocol
SUM
E-10
A proprietary Vipersat data streaming protocol.
Status Update Message – A packet message that is sent by newer Vipersat
modems (e.g., SLM-5650A) to the VMS every sixty seconds, providing status
update and operating parameter information.
V i p e r s a t C D M - 5 7 0 / 5 7 0 L U s e r G u id e