MSD1278T-224KLB
Coilcraft
By default, the shield uses the Coilcraft MSD1278T-224KLB. This inductor features an inductance of 220μH
Design DocumentAnalog
EVAL-10BT1L-MCS IEEE 802.3cg SPoE Shield User Guide
10BASE-TX to 10BASE-T1L media converter shield for IEEE 802.3cg SPoE applications using ADIN1100 and ADIN1200 PHYs.
Overview
The EVAL-10BT1L-MCS is a media converter shield designed for IEEE 802.3cg Single-Pair Power over Ethernet (SPoE). It facilitates data conversion between traditional 10BASE-TX 4-pair Ethernet and 10BASE-T1L single-pair Ethernet. The shield is available in two versions: the MCS-AZ for Class 10 to 14 power levels (up to 20W) and the MCS-BZ for Class 15 power levels (up to 52W). Core components include the ADIN1100 10BASE-T1L PHY and the ADIN1200 10BASE-TX PHY, which interface via RMII. Power management is handled by an on-board LT8301 isolated flyback converter providing 3.3V, while an ADuM1251 provides isolation for the MDIO management interface.
Use Cases
- Industrial Ethernet networking
- SPoE Power Sourcing Equipment (PSE) evaluation
- Powered Device (PD) development
- 10BASE-T1L long-reach communication systems
- Media conversion between legacy Ethernet and Single-Pair Ethernet
Topics
ADIN1100
ADIN1200
LT8301
ADuM1251
10BASE-T1L
10BASE-TX
SPoE
IEEE 802.3cg
Media Converter
Single-Pair Ethernet
Power over Ethernet
MSD1278T-224KLB
Referenced Parts
1803280
Phoenix Contact
Connector J5 of the shield is a Phoenix Contact (1803280) 3-position, terminal block header
1803581
Phoenix Contact
Connector J5 mates with the Phoenix Contact 1803581, 3-position, screw terminal, female
SMAJ54CA
Littelfuse
If more robust surge protection is desired, the SMAJ54CA bidirectional TVS on D7 can be installed.
ADIN1200
Analog Devices
the ADIN1200, 10BASE-TX PHY, which provide the Ethernet data media conversion in the system.
LT8301
Analog Devices
The on-board LT8301, isolated flyback converter, provides an isolated 3.3V power source to the PHYs.
LTC4296-1
Analog Devices
GND is the common ground for SPoE and originates from the motherboard it is installed on, either from the LTC4296-1 or the LTC9111.
LTC9111
Analog Devices
The LTC9111 measures its port voltage by default at the input of SPoE PD motherboards
MSD1048H-104
Coilcraft
on the other hand, if transmission droop is not a priority, the MSD1048H-104 inductor can be used (100μH).
MSD1278H-474KED
Coilcraft
if better transmission droop is required, the MSD1278H-474KED with an inductance value of 470μH can be used.
ICI70CGI-222N
TDK
The isolated coupled inductor from TDK, ICI70CGI-222N, is used to provide the isolation between the PHY and the PI on both shields.
7498011211
Wurth Elektronik
connected with a traditional CAT5 Ethernet cable to the Wurth Elektronic 7498011211 RJ45 magjack at J4.
D55V0M1B2WSQ-7
Diodes Inc.
Surge protection at the power interface is handled with the D55V0M1B2WSQ-7 bidirectional TVS diode on D6.
| MSD1278T-224KLB | Coilcraft | By default, the shield uses the Coilcraft MSD1278T-224KLB. This inductor features an inductance of 220μH |
| SP3051-04HTG | Littelfuse | optional SP3051-04HTG TVS diode array is available at D1 and D5. |
| 1803280 | Phoenix Contact | Connector J5 of the shield is a Phoenix Contact (1803280) 3-position, terminal block header |
| 1803581 | Phoenix Contact | Connector J5 mates with the Phoenix Contact 1803581, 3-position, screw terminal, female |
| SMAJ54CA | Littelfuse | If more robust surge protection is desired, the SMAJ54CA bidirectional TVS on D7 can be installed. |
| ADIN1100 | Analog Devices | The shield includes the ADIN1100, 10BASE-T1L PHY |
| ADIN1200 | Analog Devices | the ADIN1200, 10BASE-TX PHY, which provide the Ethernet data media conversion in the system. |
| ADuM1251 | Analog Devices | subsequently electrically isolated through the ADUM1251 isolator. |
| LT8301 | Analog Devices | The on-board LT8301, isolated flyback converter, provides an isolated 3.3V power source to the PHYs. |
| LTC4296-1 | Analog Devices | GND is the common ground for SPoE and originates from the motherboard it is installed on, either from the LTC4296-1 or the LTC9111. |
| LTC9111 | Analog Devices | The LTC9111 measures its port voltage by default at the input of SPoE PD motherboards |
| MSD1048H-104 | Coilcraft | on the other hand, if transmission droop is not a priority, the MSD1048H-104 inductor can be used (100μH). |
| MSD1278H-474KED | Coilcraft | if better transmission droop is required, the MSD1278H-474KED with an inductance value of 470μH can be used. |
| ICI70CGI-222N | TDK | The isolated coupled inductor from TDK, ICI70CGI-222N, is used to provide the isolation between the PHY and the PI on both shields. |
| 7498011211 | Wurth Elektronik | connected with a traditional CAT5 Ethernet cable to the Wurth Elektronic 7498011211 RJ45 magjack at J4. |
| D55V0M1B2WSQ-7 | Diodes Inc. | Surge protection at the power interface is handled with the D55V0M1B2WSQ-7 bidirectional TVS diode on D6. |