26
INDUSTRIAL MODEM RF115
6.3 MultiMasterSync Mode
The MultiMasterSync Mode allows a configuration to have more than one master
unit. This section describes the setup and operation of the MultiMasterSync mode.
This mode synchronizes the transmitter with several co-located transceivers (in
either point-to-point or multipoint operation), thereby eliminating the possibility
of receiver overload. This firmware must be Version 5.26 (or higher) for units with
addresses of 571 (see the first 3 digits of the “Modem Serial Number” in the sample
screen shown below) or Version 5.19c for units with addresses of 570.
Setting up the MultiMasterSync mode:
1. For the MultiMasterSync mode to operate, the minimum and maximum
packet sizes and the RF data rate must be set identically on all modems in the
system. These parameters are found in submenu 3 (Radio Transmission
Characteristics). For example, the min./max. factory-default setting is 2 for the
minimum and 9 for the maximum. All units in the system must be configured
with these same settings. The min./max. numbers can be anything the user
needs, but all modems must be configured to match.
2. Set the Frequency Key of the “Grand Master” to 0, as shown below.
Version 5.27 03-14-97
Standard Hop Table
Modem Serial Number 571-0990
(0)
Set Operation Mode
(1)
Set Baud Rate
(2)
Edit Call Boook
(3)
Edit Radio Transmission Characteristics
(4)
Show Radio Statistics
(5)
Edit MultiPoint Parameters
(6)
TDMA Menu
(Esc)
Exit Setup
Enter Choice 3
RADIO PARAMETERS
WARNING: Do not change parameters without reading manual
(0)
FreqKey
0
(1)
Max. Packet Size
9
(2)
Min. Packet Size
2
(3)
Xmit Rate
1
(4)
RF Data Rate
3
(5)
RF Xmit Power
9
(6)
Slave Security
1
(7)
RTS to CTS
0
(8)
Retry Time Out
255
(Esc)
Exit to Main Menu
Summary of Contents for MD3310-R2
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