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1.3 Electrical
The EM405D only requires a +12V DC power input. The +12V input is internally converted to
the +3.3V power required by the carrier and the +5V, +12V, and -12V power required by the M-
modules. A maximum of 30 watts is required to support the carrier and two M-modules
operating at the maximum allowed power consumption. The maximum allowed power
consumption for each M-module is 1A of +5V and 200ma each of +12V and -12V. The
EM405D uses power-off resetable fuses on the incoming +12V supply. If a fault occurs, power
must be removed before the fuse will reset. The fuse is rated at 5 amps.
1.4 Mechanical
The EM405D is contained in a metal chassis with an outside dimension of 5.6 inches wide by 8.5
inches deep by 1.5 inches high. A variable speed fan provides forced air for cooling the M-
modules. The unit weighs approximately 1.7 lbs with no M-modules installed.
1.5 Environmental
The environmental specifications of the module are:
Operating Temperature: 0C to +60C*
Storage Temperature: -40C to +75C
Humidity: <95% without condensation
* The forced air cooling is designed to allow a maximum 20C temperature rise for installed M-
modules. In other words, with two M-modules operating at full dissipation, the M-modules’
temperature can only be maintained within 20C of the ambient air inlet temperature.
Installed M/MAs may differ in environmental specification. Refer to each individual M/MA’s
documentation for information.
1.6 Bus Compliance
The module complies with the ANSI/VITA 12-1996 Specification for single or double-wide M-
Modules and the MA-Module trigger signal extension.
Addressing: A08 only (extended addressing not supported)
Data: D16 only
Interrupts: not supported
DMA: not supported
Triggers: Trig A and Trig B Input/Output
Manufacturer ID: 0FC1
16
Model Number: 0FDB
16