36
MDS 1710A/C and MDS 2710A/C/D
MDS 05-3447A01, Rev. F
3. Program all other radios in the network as nodes by entering the
DTYPE NODE
command at each radio.
4. Use the
DLINK ON
and
DLINK [baud rate]
commands to con
fi
gure the
diagnostic link protocol on the RJ-11 port of each node radio.
5. Connect same-site radios using a null-modem cable at the radios’
diagnostic ports.
6. Connect a PC on which MDS InSite software is installed to the root
radio, or to one of the nodes, at the radio’s diagnostic port. (This PC
may be the PC being used to collect payload data, as shown in
Figure 12
.)
To connect a PC to the radio’s
DIAG.
port, an RJ-11 to DB-9 adapter
(MDS P/N 03-3246A01) is required. If desired, an adapter cable
may be constructed from scratch using the information shown in
Figure 13
.
Invisible place holder
Figure 13. RJ-11 to DB-9 Adapter Cable
7. Launch the MDS InSite application at the PC. (See the MDS InSite
User’s Guide for instructions.)
7.3 Bench Testing Setup
Figure 14
shows a sample test setup that can be used to verify the basic
operation of transceivers in a shop setting. The test can be performed
with any number of remote radios by using a power divider with the
required number of output connections.
The RTU simulator shown in the test setup (MDS Part No. 03-2512A01)
is a microcontroller that emulates a remote terminal unit operating at
1200, 2400, 4800, or 9600 bps. Custom software is supplied with the
RTU simulator that allows continuous polling of remote radios using an
IBM-compatible personal computer. The software reports the number of
polls sent, polls received, and the number of errors detected.
As an alternative to using an external RTU simulator, the transceiver’s
internal RTU simulator may be used (see
RTU
command in
Table 7 on
page 20
). (This will not provide as conclusive a test as an external sim-
ulator because it does not utilize the transceiver’s data connector.)
RXD
TXD
GND
2
3
5
DB-9 FEMALE
(TO COMPUTER)
TXD
RXD
GND
4
5
6
RJ-11 PLUG
(TO RADIO)
RJ-11 PIN LAYOUT
1
6
MDS 05-3447A01, Rev. F
MDS 1710A/C and MDS 2710A/C/D
5
1.5 Accessories
The transceiver can be used with one or more of the accessories listed in
Table 2
. Contact Microwave Data Systems for ordering information.
2.0 GLOSSARY OF TERMS
If you are new to digital radio systems, some of the terms used in this
guide may be unfamiliar. The following glossary explains many of these
terms and will prove helpful in understanding the operation of the trans-
ceiver.
Active Messaging
—This is a mode of diagnostic gathering that may
interrupt SCADA system polling communications (contrast with
pas-
sive messaging
). Active (or intrusive) messaging is much faster than
passive messaging because it is not dependent upon the RTU polling
cycle.
Table 2. MDS 1710/2710 Series Optional Accessories
Accessory
Description
MDS P/N
Hand-Held Terminal
Kit (HHT)
Terminal that plugs into the radio for
programming, diagnostics & control.
Includes carrying case, instructions and
cable set.
02-1501A01
RTU Simulator
Test module that simulates data from a
remote terminal unit. Comes with MDS
polling software (02-2093Axx) that runs
on a PC. Useful for testing radio
operation.
03-2512A01
Order Wire Module
External device that allows temporary
voice communication. Useful during
setup & testing of the radio system.
02-1297A01
Power Supply Kit
AC adaptor that converts 110/220 Vac to
12 Vdc at 30 watts.
01-3682A01
Order Wire Handset
Used with Order Wire Module (above).
12-1307A01
RJ-11 to DB-9 Adapter
Used to connect a PC to the radio’s
DIAG. port
03-3246A01
EIA-232 to EIA-422
Converter Assembly
External adapter plug that converts the
radio’s DATA INTERFACE connector to
EIA-422 compatible signaling.
03-2358A01
TTL Converter
Assembly
External adapter plug that converts the
radio’s DATA INTERFACE connector to
TTL compatible signaling.
03-2223A01
Radio Configuration
Software
Provides diagnostics of the transceiver
(Windows-based PC required.)
03-3156A01
VOX Assembly
External unit used to key the radio when
audio input is present.
03-1098A02
19-inch Rack Mounting
Kit
Allows mounting the transceiver in a
standard 19 inch rack cabinet. (Power
supply and Interface Board not included.)
02-1983A02
Brown-Out Protection
Board
PCB that protects against low voltage
conditions.
03-2567A01
