User Manual

Operation
The MSRY must be programmed before being installed in the field. The MSRY is programmed
using a computer and the supplied MSRY software. The MSRY connects to the PC by an RS232
9-pin data cable. NOTE: If the computer does not have an RS232 Serial Port, the purchase of an
RS232 9-pin to USB conversion cable may be required. The receiver channel, transmit channel,
format, and the MSRY ID code are set during the programming mode. The current voltage level
from the internal batteries is also displayed.
Setup
The connection of the MSRY Relay to the computer must be performed in the following
sequence or errors could occur.
1. Ensure MSRY Relay switch is in the “OFF” position.
2. Connect the serial port cable to the computer.
NOTE: If the computer has an RS232 9-pin female
serial port, use this Comm port. If the computer only
has a USB Comm port, the purchase of a USB to
Serial cable will be required. For this cable to
operate properly, it will require software installation
that comes with the cable.
3. Connect the Serial cable 9-pin male connector to the
MSRY Relay serial port.
4. Turn the MSRY Relay switch to the “ON” position.
5. Run “MSRY Programmer” on the computer.
6. Input the Receiver Channel, Transmit Channel, and
ID Code.
7. Select “Program Unit”. Select “OK” when
programming is complete.
8. Close “MSRY Programmer” and disconnect the
serial cable from the computer and MSRY Relay.
9. Turn power off to MSRY Relay.
Data Messages
The MSRY Relay has a built in transmitter and receiver. However, it does not incorporate the
same data message features as the MXMT or MMCT transmitters. It receives, stores, and
transmits messages received from MIDS and EMIDS transmitters.
The only data message that can be sent by the MSRY Relay is a test message. When the test
button is pressed, the Relay transmits a message that gives the MSRY ID Code and the data
message “Test”. No other data messages apply to the MSRY Relay.
RF Link
The operational range of the RF link is dependent upon various conditions. The high frequency
of the RF link works best under line of sight conditions. However, operation from gulches and
around buildings or hills is possible for shorter ranges. Dry sand, heavy foliage, and non line-of-
sight can all play a part in decreasing the retransmission range. Retransmission ranges of 25 to
100 miles can be achieved depending on terrain.
QTI Page 6 Revision: F
Form #: 30Z0136 Effective Date: 23 August 2006