Figure 2-33 IS-TCD3 DPM Connector Locations
Orange connectors to detectors: Each IS-TCD3 DPM consists of two connections. Each
connection is capable of interfacing to two pairs of TCD elements (four total channels, 1 for
reference and 3 for signal).
Figure 2-34 Detail of Detector Connectors
Intrinsic Safety Grounds: The intrinsically safe design of the IS-TCD3 DPM (not normally used
with airless or airbath ovens) requires two ground connections to the chassis terminated to
two different terminals. The Maxum II Modular Oven is shipped with these grounds connected
correctly. Refer to the Maxum II Explosion Protection Safety Standards Manual
(A5E02220442001) for more information on the safe use of intrinsically safe circuitry in the
Maxum II.
I
2
C Bus Connection: The white connector on the reverse side of the DPM connects to the I
2
C
Bus on the PECM.
Electronic Compartment Component Descriptions and Maintenance Procedures
2.5 Detector Personality Modules
Maxum II Reference Manual
Manual, 7/2017, 2000596-001 69
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