Dell Edge Gateway 3200 User's Guide

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Digital I/O connector

The EGW-3200 provides six channels of non-isolation digital input and six channels of non-isolation digital output circuits, with specifications and circuits as follows.

6-channel digital input
- VIH: 2 V to 5.25 V
- VIL: 0 V to 0.8 V
6-channel digital output
- Output type: Open drain N-channel
- MOSFET driver with internal pull high of 200 Ω resistance
- Source/sink current for all channels: 24 mA
- VOH: 2.4 V to 5 V
- VOL: 0 V to 0.5 V

Digital I/O connector pin locations — Figure 1. Digital I/O connector pin locations

Table 1. Digital I/O connector pin definitionsDigital I/O connector pin definitions
Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
1	DI0	8	N/C	15	GND	22	DO3
2	DI1	9	GND	16	N/C	23	DO4
3	DI2	10	CAN1_H	17	N/C	24	DO5
4	DI3	11	CAN1_L	18	N/C	25	N/C
5	DI4	12	GND	19	DO0	26	GND
6	DI5	13	CAN0_H	20	DO1	–	–
7	N/C	14	CAN0_L	21	DO2	–	–

Digital input circuit — Figure 2. Digital input circuit

Digital output circuit — Figure 3. Digital output circuit

This connector can also be used as a Canbus interface using the onboard MCP2542FD-E transceiver from Microchip Technology. The following table and figure provide more detail.

NOTE:Canbus is compatible with Ubuntu OS only and requires a DB26 connector interface.

Table 2. Canbus specificationsCanbus specifications
Parameter	Min	Typ	Max	Units	Note
Data rate	–	–	5	Mbps	–
VOD (VOH)	1.3	–	3.3	V	RL = 40 to 70 ohm
VOD (VOL)	–	0	–	V	–
Vth	0.5	–	0.9	V	–

Canbus transceiver schematic — Figure 4. Canbus transceiver schematic