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1892 1139 - RSX Range of Intelligent Modems User Guide - v7.1 / Nov 2007
2
Part Two: Programming the Radio
2.1
HARDWARE LINK SETTINGS
Some options may be configured to user requirements using the on-board links as
detailed in the following table. With the exception of LK7, they all relate to radio
operation.
Link Function
Settings
LK3 +Vin/LED
closed when 9-way D-type connector is fitted
open when 10 way IDC is fitted*
LK4
Over-air baud rate
closed
= 4800
open
= 9600
LK5
closed
open
LK6
open
closed
LK7 EEPROM write enable (applies
to modem settings only)
closed = enable (default setting)
open = write protect
LK9 +Vin/LED
open when 9-way D-type connector is fitted
closed when 10 way IDC is fitted*
LK10 LED enable
closed = enable (default setting)
open = disable
LK11 Transmitter power
1 - 2 = 500mW (default setting)
2 - 3 = 5mW
Table 3
- Link Settings
*OEM version only
These links are only accessible with the PCB removed from the enclosure, and are all on
the underside of the board (the radio module being on the upper side).
To remove the PCB from the enclosure:
1.
Undo the four screws on the top of the unit and remove the lid.
2.
Undo the two hexagonal bushes which secure the D-type connector, being careful
to retain the mounting plate and any nuts and washers from the inside of the
enclosure.
3.
Undo the four screws which hold the PCB in place in the enclosure.
4.
Lift the PCB out of the case, and pull the miniature coaxial connector out of the
radio module socket so that the PCB is completely free of the enclosure.
v
It is not necessary to remove the BNC antenna socket.
To reassemble the unit, reverse the instructions.