IS420UCSBH1A REV.G Mark VIe Controller

The IS420UCSBH1A controller is the first of the UCSB controllers manufactured by General Electric as part

of the Mark VIe Control Safety System Series. This controller is similar to the UCSC controller and while it does not

have the same hardware the software needed to operate this controller is nearly identical. According to the GEH-6725

Mark VIe and Mark VIeS, Controls Equipment HazLoc Instruction Guide the IS420UCSBH1A controller is labeled

as a Mark VIe, LS2100e, and EX2100e controller. There is also a specific microprocessor used with this controller,

the microprocessor installed in this device is the 600 MHz EP80579 Intel Processor.

IS420UCSBH1A

On page twenty-two of the GEH-6725 Instruction Guide, there is a small table that labels the electrical/power

supply ratings needed to power the IS420UCSBH1A, the ratings are as follows, a minimum voltage of eighteen

direct currents, with a maximum of thirty volts of direct current, the nominal power rating is twenty-four and

twenty-eight volts of direct current. The maximum current rating used with this device is 1.5 ADC.

When being mounted there are several certifications that are required to mount the IS420UCSBH1A controller in hazardous

and non-hazardous locations alike. For example, when mounted in ATEX Zone 2, Group IIC, the certification needed is

UL DEMKO 12 ATEX 1114875X. All certifications regarding the controller being mounted in Class I, Zone 2, Group

IIC, non-hazardous, and Class I, Division 2, Groups, A, B, C, and D are the same, the certification requirements for these locations are UL E207685.