| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
PHIHONG USA |
IEEE802.3BT - POE INJECTOR DESKT |
0 |
|
 |
Roving Networks / Microchip Technology |
4-PORT AF 15.4W AC INPUT JP CORD |
0 |
|
 |
Tycon Systems, Inc. |
4 PORT MID SPAN, VERY HIGH POWER |
0 |
|
 |
American Electrical, Inc. |
POE INJECTOR 33W |
103 |
|
 |
Tycon Systems, Inc. |
ISOLATED MID SPAN VERY HIGH POWE |
0 |
|
 |
PHIHONG USA |
PASSIVE POE ADAPTER C14 5 GIGABI |
6 |
|
 |
Tycon Systems, Inc. |
OUTDOOR 8 PORT 10/100 48VDC PASS |
0 |
|
 |
Coolgear |
22W DC TO USB TYPE-C PD OUTPUT A |
0 |
|
 |
Coolgear |
USB C WITH PD POE SPLITTER FOR N |
0 |
|
 |
Tycon Systems, Inc. |
24V 12W 10/100MB PASSIVE POE POW |
598 |
|
 |
Tycon Systems, Inc. |
48V 16.8W 802.3AF GIGABIT POE PO |
0 |
|
 |
Roving Networks / Microchip Technology |
1-PORT AT 30W 1G AC |
21 |
|
 |
Roving Networks / Microchip Technology |
4-PORT AF 15.4W AC INPUT EU CORD |
5 |
|
 |
PHIHONG USA |
POE INJECTOR 33.6W 56V BRACKET |
20 |
|
 |
RLE Technologies |
POE KIT FOR F200 |
50 |
|
 |
PHIHONG USA |
POE INJECTOR 33.6W 56V DESKTOP |
0 |
|
 |
PHIHONG USA |
POE SPLITTER 21W 12V DESKTOP |
3197 |
|
 |
PHIHONG USA |
POE SPLITTER 12W 12V DESKTOP |
36 |
|
 |
ICP DAS USA Inc. |
POE INJECTOR FOR 1 POE PORT (USE |
30 |
|
 |
PHIHONG USA |
POE SPLITTER 14W 12V DESKTOP |
23 |
|
Power Supplies (PSUs) provide electrical energy to devices, categorized as external (AC adapters) or internal (mounted within devices). Power over Ethernet (PoE) integrates data and power delivery over Ethernet cables, enabling efficient power management for networked devices. PoE eliminates redundant cabling, reduces installation costs, and supports flexible device deployment in modern applications like IoT, surveillance, and smart buildings.
| Type | Functional Features | Application Examples |
|---|---|---|
| PoE (IEEE 802.3af) | Up to 15.4W, legacy devices | IP phones, basic surveillance cameras |
| PoE+ (IEEE 802.3at) | Up to 30W, dynamic power allocation | PTZ cameras, video phones |
| PoE++ (IEEE 802.3bt Type 3/4) | 60W (Type 3), 90W (Type 4), 4-pair power | Wireless APs, LED lighting, thin clients |
| UPoE (Cisco Universal PoE) | Up to 60W, proprietary protocol | Digital signage, high-power sensors |
PoE systems consist of Power Sourcing Equipment (PSE) and Powered Devices (PD). PSEs (e.g., switches, injectors) include controllers for power negotiation, isolation transformers, and protection circuits. PDs (e.g., cameras, APs) feature rectifiers, DC-DC converters, and signature detection circuits. External PSUs typically use AC-DC conversion, while internal PSUs integrate DC-DC modules.
| Parameter | Importance |
|---|---|
| Power Output (W) | Determines device compatibility (e.g., 15.4W for VoIP phones) |
| Efficiency (80 PLUS Rating) | Reduces energy waste and operational costs |
| Input Voltage Range | Ensures adaptability to global power standards (100-240V AC) |
| Protection Features | Overcurrent, overvoltage, and short-circuit protection |
| Compliance Standards | IEEE 802.3af/at/bt, UL 62368-1 |
| Vendor | Representative Product |
|---|---|
| Cisco Systems | Catalyst 9200L Series PoE switches |
| Microchip Technology | PoE++ (90W) controllers for PDs |
| TP-Link | TalkTalk L2+ PoE managed switches |
| Dell Technologies | PowerEdge R760xa with integrated PoE+ |
Future developments include higher power delivery (90W+), improved energy efficiency (80 PLUS Titanium), and integration with IoT ecosystems. Standards like IEEE 802.3bt enable multi-gigabit PoE for 5G small cells and edge computing devices. Smart PoE systems with AI-driven power allocation are emerging for dynamic load management in data centers.