Contemporary Control Systems ARCNET AI-USB/485 Kurulum Kılavuzu - Sayfa 6

Anahtar Contemporary Control Systems ARCNET AI-USB/485 için çevrimiçi göz atın veya pdf Kurulum Kılavuzu indirin. Contemporary Control Systems ARCNET AI-USB/485 12 sayfaları. Fixed-port active hubs with usb interface

Sayfayı Yazdır

AC Powered

If AC power is desirable, the AI-USB can be powered by the

Figure 9

secondary of a low-voltage transformer (

) whose

primary is connected to the AC mains. The secondary voltage

must be in the range of 8–24 VAC and must not be grounded.

When using a grounded secondary transformer, refer to Figure

10. For convenience, two AC power adapters are available

from Contemporary Controls: the AI-XFMR is for 120 VAC

primary power and the AI-XFMR-E is for 230 VAC primary

power.

0Vdc

Figure 9 — AC Powered

0Vdc

Figure 10 — AC Power with Grounded Secondary

AC Powered with Battery Backup

The AI-USB can also be powered from both an AC and DC

source. Usually the DC source is from a battery connected as

Figure 11

the DC-powered option. Refer to

for details. In

this application the AI-USB does not charge the battery, so

separate provisions are required for charging. If the AC source

fails, the AI-USB will operate from the battery.

0Vdc

Figure 11 — AC Power with Battery Backup

TD030500-0IB