GE MDS SD Series Technical Manual page 112

RTU — Remote Terminal Unit. A data collection device installed at a remote radio site. An in-
ternal RTU simulator is provided with the transceiver to isolate faults to either the external RTU
or the radio.
RX — Abbreviation for "Receive." See also TX.
SAF — Store and Forward. An available feature of the radio where data is stored by a designated
Remote, and then retransmitted to a station beyond the communication range of the AP.
Signal-to-Noise Ratio — See SNR.
SCADA — Supervisory Control And Data Acquisition. An overall term for the functions com-
monly provided through an MAS radio system.
SNR — Signal-to-Noise ratio. A measure of how well the signal is being received at a radio rela-
tive to noise on the channel.
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
power 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).
Telnet — A terminal emulation protocol that enables an Internet user to communicate with a
remote 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 is 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).
102 SD Series Technical Manual MDS 05-4846A01, Rev. I