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INSTALLATION
Radios with Data Expansion Head Enhanced
To use a junction box with one of the MTM5400 mobile terminals fitted with a Data Expansion Head
Enhanced, always use the 9-pin RS232 port on the Data Expansion Head Enhanced for PEI instead
of the 9-pin RS232 port on the junction box (connector 6). Ensure to fit a jumper between pins 6 and
15 of the Junction Box (connector 5) for the PEI to operate correctly in this configuration.
Standard Radios without Data Expansion Head Enhanced
For standard MTM5400 mobile terminals without a Data Expansion Head Enhanced, the jumper
between pins 6 and 15 of the junction box (connector 5) should be removed.
MTM5400
With Data Expansion Head Enhanced
Without Data Expansion Head Enhanced
MTM5400 Mobile Terminal Installation Manual
Table 8 Jumper on Accessory Connector
Mobile Terminal
Fit Jumper Pins 6-15?
Yes
No
Use Junction Box RS232 PEI?
No
Use the Data Expansion Head
Enhanced 9-pin PEI instead.
Yes
57
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