Motorola MTM5400 installation manual Use the Data Expansion Head

INSTALLATION MTM5400 Mobile Terminal Installation Manual 57

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.

Table 8 Jumper on Accessory Connector

MTM5400 Mobile Terminal	Fit Jumper Pins 6-15?	Use Junction Box RS232 PEI?
		No
With Data Expansion Head Enhanced	Yes	Use the Data Expansion Head
		Enhanced 9-pin PEI instead.
Without Data Expansion Head Enhanced	No	Yes