TM 1-1510-262-10
classiied PCMCIA module referred to as the User Data Module (UDM) is a separately provided item used to load
the system software into the ECU. The ECU is located aft of the airstair door, over the ECU Service Panel, which is
mounted to the loor.
Figure 4-4. Electronic Control Unit
Table 4-4.
Electronic Control Unit Features
ITEM #
NOMENCLATURE
PURPOSE
1
J3 connector - EOMS Signal and Power
Provides data, power, and control to/from EOMS.
2
Fans
Cooling. Air is drawn through front and exited
at rear.
3
J2 Discretes, Platform Identiication (ID).
Provides discrete signal inputs from external
components.
4
J4 Serial Data, Ethernet
Provides ICMD, CI, and Ethernet data linking.
5
UDM Housing (with Cover Closed)
Provides holder and electrical connections for
UDM.
6
Provides input power: 115 Vac, +28 Vdc.
J1 Input Power and Control
4-9