Ampro Corporation 486E manual Connector Function Size Key Pin, Connectors

Little Board™/486e Technical Manual

Table 2–1. Connector Usage Summary

Connector	Function	Size	Key Pin
P1A/B	PC/104 Expansion Bus	64-Pin	B10
P2C/D	PC/104 Expansion Bus	40-pin	C19
J2	Compact Flash Card	50-pin
J3	Flat Panel Video	50-pin	35
J4	LCD Bias Supply Connector	12-pin	3, 10
J5	CRT Video	10-pin	None
J6	RS-485	2-pin	None
J7	Ethernet Twisted Pair	RJ45	None
J10	Power, +5V and +12V	4-pin	None
		Molex
J11	Serial 1 and Serial 2	20-pin	20
J12	IDE Hard Disk	40-pin	20
J13	Serial 3 and Serial 4	20-pin	20
J14	Floppy Interface	34-pin	6
J15	Parallel Port	26-pin	26
J16	Utility/Keyboard	16-pin	2

Connectors

The I/O connectors are dual-row headers for use with insulation displacement connectors (IDC) and flat ribbon cable.

A number of the connectors have key pins. Install a blocking key in the corresponding connector socket on the mating ribbon cable to prevent misalignment.

You can design PC boards with female connectors in the same relative positions as the Little Board’s connectors. This eliminates cables, meets packaging requirements, adds EMI filtering, or customizes the installation in other ways.

The PC/104-compatible expansion bus is located on connectors P1A/B and P2C/D. The system can be expanded using Ampro MiniModule expansion products or other PC/104-compliant expansion modules. These modules can be attached by stacking them directly on the P1 and P2 connectors or by using standard or custom expansion hardware; including solutions available from Ampro. Contact your Ampro sales representative for information about alternatives offered by Ampro.

If you plan to use the on-board video controller with a flat-panel LCD that requires a Vee voltage, you can install Ampro’s optional LCD Bias Supply board on connector J4, as shown in Figure 2-1. This board can be jumpered to supply positive or negative Vee from ±15V to ±35V (adjustable).

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