User's Manual

Install Hardware

Part No. 430-4G-200-00-000

4-8

The V-Station 4G and V-Flex 4G devices both support Power over Ethernet (PoE), using their

RJ-45 Ethernet interface. When these devices are to be powered over Ethernet, an IEEE

802.3af compliant Active Midspan Injector must be used (see Figure 4-9). Such an injector is not

supplied with L-1 EAS products. An example of a suitable PoE injector is Model No. AT-6101G

from Allied Telesis Inc. (http://www.alliedtelesis.com).

Any such device should carry at least one of the certifications shown below in Figure 4-8 and

should be FCC listed.

Figure 4-8: Certification Marks

Figure 4-9: Power Over Ethernet Connection

Specifications for suitable PoE Injectors are as follows:

Input voltage: 90-264 VAC, 60 Hz

Input current: 0.4A @ 100 VAC

Output voltage: -48 VDC

Output current: 0.32A

Power: 15.36 W

For Power over Ethernet, RJ-45 pin numbers 4, 5 are considered VB1(+) positive DC supply,

and pin numbers 7, 8 are VB2(-) DC return.

Detailed RJ-45 pin assignments for PoE are given in Table 4-1 (on the next page), and the

physical location of the pins in the RJ-45 connector is shown in Figure 4-11 (on the next page).

PoE

Injector

V-Station

Host

Computer

110 VAC

CAT5

RJ45

Earth Ground