EVCO EPV4GBR Hardware manual - Manual (Page 8)

Evco S.p.A. Vgraph | Hardware manual ver. 1.01 | Code 114VGRAHWE01
page 8 of 22
3. ELECTRICAL CONNECTION
3.1. Electrical connection
Position micro-switch 4 on position ON to plug in the termination of the CAN port; micro-switches 1, 2 and 3 are reserved.
The following tables show the meaning of the connectors.
Connector 1: CAN port.
Terminal Meaning
1 ground
2 signal +
3 signal -
The maximum length of the connecting cables of the CAN port of the interface depends on the baud rate of the CAN communication, as
follows:
- 1,000 m (3,280 ft) with baud rate 20,000 baud
- 500 m (1,640 ft) with baud rate 50,000 baud
- 250 m (820 ft) with baud rate 125,000 baud
- 50 m (164 ft) with baud rate 500,000 baud.
Connect the CAN port of the interface using a twisted pair.
According to the default settings, the interface recognizes the baud rate automatically, on condition that it is one of the those mentioned above;
hereinafter one suggests setting the same baud rate of the others devices in the network.
Connector 2: power supply (not isolated 24 VAC or 20 ... 40 VDC or isolated 12-24 VAC or 15 ... 40 VDC, according to the model).
Terminal Meaning
4 power supply
5 power supply