User's Manual

Table Of Contents
MDS 05-2708A01, Rev. D MDS TransNET I&O Guide 33
• 38400 • 57600 • 115200
Example: DLINK 4800 sets the RJ-11 DIAG port to operate at 4800 bps when
diagnostics is closed. This setting will not affect the port’s autobaud opera-
tion. Use only of DLINK ON, will enable the use 19200 or the most recently
programmed value. The default is DLINK 19200 and DLINK ON.
NOTE 1: The same baud rate must be entered into the InSite Equipment List’s BAUD
eld.
NOTE 2: The DLINK rate must match the rate of any connected device to the diagnos-
tic port. This may be either another MDS radio’s diagnostic port, InSite com-
puter, or another data link device that eventually connects to the InSite
computer.
DKEY
Turn Off Radio Transmitter ‘s Test Signal
Disables the transmitter when it is keyed. See also KEY command.
DTYPE [NODE/ROOT]
Network Diagnostics Mode
The DTYPE command specifies the radio’s operational characteristics for
network-wide diagnostics. The transceiver uses the following types:
NODE—The most common setting, and the default. This is the basic
system radio device-type. Typically, the radio network is comprised of
nodes and one root. Intrusive diagnostics can originate from any node.
However, non-intrusive diagnostics can only be conducted from the
root node.
ROOT—Always one, and only one, per network (including units
associated through Extension units.) The root is the focal point of
network-wide diagnostics information. Intrusive diagnostics can
originate from any radio, including the root. However, the root is the
only radio through which non-intrusive diagnostics can be conducted.
FEC [ON, OFF]
Forward Error Correction
This command is used to view the FEC setting, or turn it on or off. The default
setting is FEC ON. (It needs to be turned off when throughputs exceed
57,600 bps.) FEC is set at the Master and is automatically passed on to all
Remotes in a network.
Setting FEC to ON improves sensitivity at the cost of reduced throughput.
Typical SCADA/telemetry applications use low data rates and, as such, the
FEC setting is normally transparent to them.