Point-To-Point System; Adding A Tail-End Link To An Existing Network; Master Station - Microwave Data Systems MDS TransNET 900 Installation & Operation Manual

Point-to-Point System

A point-to-point configuration
of just two radios—a master and a remote. This provides a half-duplex
communications link for the transfer of data between two locations.
MDS TransNET
Master

Adding a Tail-End Link to an Existing Network

A tail-end link can be used to extend the range of a traditional (licensed) MAS
system. This might be required if an outlying site is blocked from the MAS
master station by a natural or man-made obstruction. In this arrangement, an
MDS TransNET 900 radio links the outlying remote site into the rest of a
licensed MAS system by sending data from that site to an associated
MDS TransNET 900 installed at one of the licensed remote sites. (See
Figure 5).
As the data from the outlying site is received at the licensed remote site, it is
transferred to the licensed radio (via a local cable connection) and is then
transmitted to the MAS master station in the usual manner. Additional details
for tail-end links are given in Section

Master Station

ACTIV E
STBY
ALAR M
RX ALR
TX ALR
ACTIV E LINE
STBY
ALAR M
RX ALR
TX ALR
LINE
ENT ER
ESC APE
Remote
Radio
RTU
MAS SYSTEM (LICENSED OR UNLICENSED)
Figure 5. Typical tail-end link arrangement
4 MDS TransNET 900 I&O Guide
(Figure
Figure 4. Typical point-to-point link
REPEATER STATION
MDS x710B
Series Radio
Null-Modem Cable
Remote
Radio
RTU
4) is a simple arrangement consisting
Invisible place holder
Host System
4.3 (Page 17).
Invisible place holder
MDS TransNET
Master
LICENSE-FREE SPREAD SPECTRUM SYSTEM
MDS 05-2708A01, Rev. B
MDS TransNET
Remote
MDS TransNET
Remote
OUTLYING
REMOTE SITE
RTU