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參數(shù)資料
| 型號(hào)： | AG9033-S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Power-Over-Ethernet Module |
| 中文描述： | 供電以太網(wǎng)模塊 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 223K |
| 代理商： | AG9033-S |
V2.4 Dec 2006
Data Sheet
Ag9000-S
Power-Over-Ethernet Module
5. Functional Description
5.1. Inputs
The Ag9000-S has two internal bridge rectifiers (see Figure 1: Block Diagram) connected
to the VA1-VA2
and the VB1-VB2
inputs. This allows the Ag9000-S to be compatible with
equipment that use the different power options, see Figure 3: Typical System Diagram. It
is important that the PSE does not apply power to the VA and VB outputs at the same time
(Refer to IEEE802.3af for more information).
PSE
(48V)
Ag9000-S
DC
OUTPUT
VA1 VB1
VA2VB2
*
+/-
+/-
POWERED DEVICE
(PD)
POWER SOURCING
EQUIPMENT (PSE)
RX
TX
TX
RX
4
5
1
2
3
6
7
8
4
5
1
2
3
6
7
8
*
* The VA and VB inputs must not be used at the same time
*
+
-
*
Figure 3: Typical System Diagram
5.2. PD Signature
When the Ag9000-S is connected to the Cat 5e cable, it will automatically present a
Powered Device (PD) signature to the Power Sourcing Equipment (PSE) or Midspan
Equipment, when requested. The equipment will then recognise that a powered device is
connected to that line and supply power.
5.3. Isolation
To meet the safety isolation requirements of IEEE802.3af section 33.4.1 a Powered
Device (PD) must pass the electrical strength test of IEC 60950 sub clause 6.2. This calls
for either a) 1500VAC test or b) 1500V impulse test. The Ag9000-S is specified to meet
the 1500V impulse test.
Silver Telecom 2006
5
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