Microhard Systems MHX-900, Руководство по эксплуатации

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MHX-900 Operating Manual: Appendix D Modem Setup Overview
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D. Modem Setup Overview
The required commands required to setup an MHX-900 module for point-to-point and point-to-multipoint are
summarized below.
These requirements will get you started and only ensure that a link can be established, but do
not necessarily provide the best performance.
Point-to-Point
To establish a point-to-point communications link, the following commands must be issued by the host EOM
microprocessor:
n
The Operating Mode S Register (S101) for one modem must be configured as a “ Master - Point-to-Point ”
(1), and the other as a “ Slave - Point-to-Point ” (2).
n
The Wireless Link Rate S Register (S103) value for both modems must be the same.
n
The Network Address S Register (S104) value assigned for both modems must be the same.
n
The Unit Address S Register (S105) value assigned for both modems must be the same.
n
The same Hopping Pattern S Register (S106) value must be selected for both modems.
n
The same Hopping Interval S Register (S109) value must be selected for both modems.
n
The same Encryption Key S Register (S107) value must be selected for both modems.
The master can now attempt to synchronize with the slave using the D<slave address> command.
Point-to-Multipoint
To establish a point-to-point communications link, the following commands must be issued by the host OEM
microprocessor:
n
The Operating Mode S Register (S101) for one modem must be configured as a “ Point-to-Multipoint
Master ” (3), and the other as a “ Point-to-Multipoint Slave” (4).
n
The Wireless Link Rate S Register (S103) value for both modems must be the same.
n
The Network Address S Register (S104) value assigned for both modems must be the same.
n
Each Slave must be assigned an unique Unit Address S Register (S105) value (Unit Address 0 is not
supported).
n
The same Hopping Pattern S Register (S106) value must be selected for both modems.
n
The same Hopping Interval S Register (S109) value must be selected for both modems.
n
The same Encryption Key S Register (S107) value must be selected for both modems.
The master can now attempt to synchronize with the slave using the D<slave address> command.