Connection; Supply Voltage; Intrinsically Safe Signal Circuit; Commissioning - Endress+Hauser Commubox FXA291 Bedienungsanleitung

Commissioning

11.2

Connection

• For computers: USB 1.1 and 2.0 compatibility, 4-pin USB connector, type A
• For transmitters: CDI connectors, short-circuit proof with reverse polarity protection
The USB and adapter cable are ready-wired on the box side upon delivery and secured
with a cable gland.
11.3

Supply voltage

• Voltage range: from the USB port on the PC, typically 5VDC
• Field devices powered up to 100 mW via VCC, reverse polarity protection
11.4

Intrinsically safe signal circuit

For connecting an intrinsically safe circuit with type of protection [Ex ia] IIC with:
• Connection voltage: < 7 VDC
• U : 260V
m
With Commubox FXA291, the intrinsically safe connection and non-intrinsically safe
connection are protected. Therefore, it is possible to connect non-Ex devices to the
intrinsically safe side of a Commubox FXA291 without this affecting approval to connect
an Ex-device subsequently.
12 Commissioning
12.1

Connecting the Commubox

12.1.1

System requirements

• USB port (USB 1.1 or 2.0)
• DVD/CD-ROM drive
• Windows 8 / Windows 7 / Windows XP
20
Commubox FXA291
Endress+Hauser