OP8926 Hardware Interface

Faceplate

The faceplate provides two HDB44 connectors (J1, J2), one 4-pin Molex connector (J3), and two LEDs:

J1, J2 Connectors

The 32 digital I/O signals are routed to both J1 and J2 connectors. This allows, for example, splitting the input and output signals into two different cables.

If the harnessing uses only one connector, it is recommended to use J2 (bottom one).

The connectors' pin assignment is detailed in the OP8910 Pin assignment

J1-J2 Recommended Mating Connector

Manufacturer	Part number	Description
Norcomp	180-044-173L000	D-SUB Housings
Norcomp	180-001-170L001	Crimps for 24 to 26 wire gauge
Norcomp	979-025-030R121

J3 Connector

J3 is used to connect the two external reference voltages for fault insertion.

J3 Mating Connector with Crimps

Manufacturer	Part number	Description
Molex	538-172258-1004	Headers and Wire Housings
Molex	538-172253-3023-LP	Crimps for 16 to 18 wire gauge

LED Definition

LED Name	LED Behavior	Definition
Power	Off	No power present on module (either from SLSC Interface or external power)
	Solid Green	Power OK State
	Blinking Red	Module Fault State
Ready	Off	The module is not powered or in Rdy/Rst# is driven low by the chassis.
	Solid Green	Module in the default configuration, recognized by the chassis and ready to configure. (The Rdy/Rst# signal has been pulled high by the chassis.)
	Blinking Amber	The module is active (in a non-default configuration and/or communicating with the chassis).