GE MDS Master Station Technical Manual page 111

SCADA—Supervisory Control And Data Acquisition. An overall term for the functions com-
monly provided through an MAS radio system.
SCEP (Simple Certificate Enrollment Protocol): A scalable protocol for networks based on
digital certificates, which can be requested by users without the need for assistance or manual
intervention from a system administrator.
SNR—Signal-to-Noise ratio. A measure of how well a signal is being received relative to noise
on the radio channel.
SSH: Secure Shell protocol for a network that allows users to open a window on a local PC and
connect to a remote PC as if they were present at the remote.
SSID (Service Set Identifier): A name that identifies a particular 802.11wireless LAN.
Standing Wave Ratio—See SWR.
Supervisory Control And Data Acquisition—See SCADA.
SWR—Standing Wave Ratio. A parameter related to the ratio between forward transmitter pow-
er and the reflected power from the antenna system. As a general guideline, reflected power
should not exceed 10% of the forward power (≈ 2:1 SWR maximum).
Telnet—A terminal emulation protocol that enables an Internet user to communicate with a re-
mote device for management activities as if it were locally connected to a PC.
Terminal Server—An available feature on the radio which encapsulates serial data from the
COM1/COM2 ports, and sends it over the air as IP packets. The data is decapsulated at the re-
ceiving end and routed to the appropriate COM ports.
Transparent Mode—A mode in which payload data remains unchanged from its original format
when it is sent over the air. A radio in this mode is said to be "transparent" to connected equip-
ment at each end of a link.
TX—Abbreviation for "Transmit." See also RX.
VLAN—Virtual Local Area Network
WAN—Wide Area Network
x710—The generic name for GE MDS legacy transceiver-family products, including the MDS
9710 (900 MHz), MDS 4710 (400 MHz), 2710 (200 MHz) and MDS 1710 (100 MHz).
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