MXi005U OPERATIONS AND MAINTENANCE
The external1 interlock contacts are available in two separate locations. The first location is on the two pin terminal
block on the rear of the MXi transmitter chassis. This is the more likely and convenient place for the External1
interlock to be connected. A second parallel set of contacts is located on the 15-pin Telemetry D-connector on the
rear of the MXi transmitter chassis. Only one set of these contacts need to be closed to enable the transmitter since
they are in parallel.
These pins would expect a dry contact that is closed when there is no error condition. This External #1 interlock is in
parallel with the two pin terminal block on the rear of the MXi transmitter chassis. The MXi applied its own +12V to
one side of this interlock (the Ext1+ line) and will sense this +12V on the other interlock side (the Ext1- line).
PUB06-76 Rev 2 July 18, 2007
06-76-7
MXi005U Operations and Maintenance
