Multi Gigabit 4 Switch AT/Class2,3,4 PoE PD Test Loader

CERIO TD-04AT-S is a PoE PD load testing solution that supports up to 4 channels with a maximum load power of 25.5W per channel. It fully complies with IEEE 802.3af and 802.3at standards and supports network switch functionality. It provides 1/2.5Gbps Multi Gigabit RJ45 Ethernet transmission capability and can perform physical power load and packet transmission tests on PoE PSE network devices. In addition to verifying the PoE power capacity of the PoE PSE network devices, it can also read the packet transmission capabilities of each port by the switch exchange port characteristics. This is an essential physical verification tool of PoE devices for system integration providers, including whether the power capacity limit is sufficient, system installers check the equipment in advance to ensure smooth installation and reduce time and labor costs, and other troubleshooting verification. It is also suitable for verification and testing of PoE PSE network devices during production and is an indispensable tool for manufacturing or verifying PoE devices.

Highlight Features

  • Complying with IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX, IEEE 802.3ab 1000Base-T, IEEE 802.3bz 2.5GBASET, IEEE 802.3af PoE and IEEE 802.3at PoE+ standards.
  • Built-in hardware switch control chip.
  • Supports 4 Port 10/100/1000/2500Mbps TX Auto-Negotiation Ethernet Switch.
  • Supports 1/2.5Gbps Multi Gigabit Ethernet connection ability.
  • Support Auto MDIX function and IEEE 802.1x flow control for Full-duplex, Back Pressure for Half-duplex operation.
  • Non-blocking & Non-head-of-line blocking full-wire speed forwarding.
  • Supports 4 PoE load testing channels with switch exchange, each channel supporting a maximum of 25.5W PoE load testing.
  • Supports 3 PD Class level : PD Class 2 (7Watt), Class 3 (12.95Watt) and Class 4 (25.5Watt), with LED display of the load level.
  • Supports both PoE End-span (Type-A) and Mid-span (Type-B) modes to accommodate different PoE PSE devices.
  • Supports PD Class level switching function, with DIP Switch allowing switching between PD Class 2 (7Watt), Class 3 (12.95Watt) and Class 4 (25.5Watt) levels.
  • High reliability metal casing design, supports 19″ rack installation.

Product Application

The CERIO TD-04AT-S PoE PD Test Loader is specifically designed to test and verify PoE PSE equipment. It is mainly used to test the performance and reliability of PoE PSE network devices. This PoE PD Test Loader can be used in various scenarios, such as:

  • Testing and acceptance by contractors: With the popularity and widespread use of PoE, the system providers can perform pre-acceptance testing and even maintenance on equipment, becoming an essential tool for network administrators to test, verify, and accept.
  • Network environment testing : During network construction and debugging, using the PoE PD Test Loader to test PoE devices can ensure that operate normally, greatly reducing system construction and labor costs, and enhancing network security.
  • Production testing : During the production process of PoE PSE network devices, using the PoE PD Test Loader can conduct comprehensive testing to ensure performance and reliability meet customer requirements, improve production efficiency, optimize production processes, and reduce production costs.
  • Product development testing : Using the PoE PD Test Loader can help R&D staff accurate test results in a short time during product verification and testing.
  • Troubleshooting : When the PoE system fails, use PoE PD Test Loader to test equipment, which can help identify the cause of the failure and repair it, helping engineers to quickly troubleshoot and reduce time and labor costs.

Hardware Overview


Standards & Hardware Specifications
Standard IEEE 802.3 10Base-T
IEEE 802.3u 100Base-TX
IEEE 802.3ab 1000Base-T
IEEE 802.3bz 2500Base-T
IEEE 802.1x Flow Control
IEEE 802.3af Power over Ethernet (PoE)
IEEE 802.3at Power over Ethernet (PoE+)
Port Configuration 4 RJ45 10/100/1000/2500Mbp Ethernet Data Ports
4 RJ45 PoE PD Ports
PoE Type End-span (Type-A): PIN 1/2,3/6
Mid-span (Type-B): PIN 4/5,7/8
Media Access Protocol CSMA / CD
Network Media 10BASE –T: UTP Cat. 3 or up,
100BASE-TX: UTP Cat. 5 or up,
1000BASE-T: UTP Cat. 5 or up
2500BASE-T: UTP Cat. 5e or up
Transmission Method Store and Forward
MAC Address Table 16K
Built-in Buffer 12Mb
Jumbo Frame 12K
Data Transfer Rate 10/100/1000/2500Mbps (Half-duplex),
20/200/2000/5000Mbps (Full-duplex)
Internal Bus Speed 25Gbps
PoE Type End-span (Type-A): PIN 1/2,3/6
Mid-span (Type-B): PIN 4/5,7/8
Data PIN PIN 1/2,3/6 & 4/5,7/8
Power PIN PIN 1/2,3/6 or 4/5,7/8 (Power + Data Pin)
Ethernet Connector RJ45 (LOAD POE) x 4
RJ45 (DATA LINK) x 4
DIP Switch All 4 test channels support DIP Switch, switchable
PD Class (C2/AF, C3/AF, C4/AT) three levels
Fan Design Ultra-Quiet Dual Fan Cooling Design
LED C2/AF (7W) Output : Status x 4 Sets
C3/AF (12.95W) Output: Status x 4 Sets
C4/AT (25.5W) Output : Status x 4 Sets
Environmental & Mechanical Characteristics
PSE Test Applicable Type Active POE IEEE 802.3 af
Active POE IEEE 802.3 at
Passive POE
PSE Input Voltage 44~57V
POE Power Output 7 +/- 1W
12 +/- 1W
25 +/- 1W
(Single Signature PD)/Max. Power Class 2 : 7W
Class 3 : 12.95W
Class 4 : 25.5W
Operating Temperature 0° to 40° C
Storage Temperature -40° to 70° C
Operating Humidity 10% to 90% non-condensing
Storage Humidity 10% to 90% non-condensing
Dimension ( W x H x D ) 441 x 310 x 44 mm
Weight ( kg ) TBD
Production Location TW
Package Contents
TD-04AT-S Main Unit x1
Quick Installation Guide Booklet x1
Power Cord x1
19” Rack Mount Brackets x1
Warranty Card x1