SKU:WSAL20157

Raspberry Pi Compute Module 4 IO Board with PoE Feature (Type B), for all Variants of CM4

Compute Module 4 PoE Board (B)

suitable for evaluating the Raspberry Pi CM4 or being integrated into end products

PoE Base Board for all Compute Module 4 Variants

Specifications

CM4 socket	suitable for all variants of Compute Module 4
Networking	Gigabit Ethernet RJ45 connector, integrates 802.3af-compliant PoE circuit (5V/2.5A)
Connector	Raspberry Pi 40PIN GPIO header, non-isolated RS485, non-isolated RS232, PCIe Gen 2 × 1
USB	USB 2.0 Type A × 4
Display	MIPI DSI display port × 2 (15pin 1.0mm FPC connector)
Camera	MIPI CSI-2 camera port × 2 (15pin 1.0mm FPC connector)
Video	HDMI port × 2, supports 4K 30fps output
RTC	Real-time clock with battery socket and ability to wake Compute Module 4
Storage	MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
Fan header	allows speed adjustment and measurement, 5V / 12V
Power input	5V
Dimensions	124.5 × 108.8mm

What's the differences

CM4 Base Board	Interface count and specifications
	PoE	Gigabit ETH	40PIN GPIO	PCIe	USB①	DSI	HDMI	CSI	RTC	Fan Header	Power Input	Features
NANO A			√		2.0×1			×1			5V	CM4 sized
NANO B		×1	√		2.0×1	×1	×1	×1			5V	CM4 sized
NANO C			√		2.0×1	×1	×1	×1			5V	Onboard Camera
mini Base A		×1	√	M.2 M	2.0×4	×1	×2	×2		5V	5V	mini size
mini Base B		×1	√	M.2 M	2.0×4	×1	×2	×2	√	5V	5V	mini size
mini Base C		×1	√	M.2 M	2.0×2		×1	×2	√	5V	5V	Dedicated 40PIN LCD Connector
Touch screen		×1		M.2 M	2.0×4		×1	×1			5V	IPS screen
Mini Dual Gigabit		×2	√		2.0×1					5V SH1.0	5V	dual ETH
Binocular camera		×1	√	M.2 M	2.0×4		×2				5V	dual 8MP cameras
4CH RS485		×1			2.0×2		×1	×2	×1	5V	7-36V	dual ETH
WIFI6 DUAL ETH		×1	√	M.2 E	2.0×3	×1	×2	×2	×1	5/12V	7-36V	WIFI6 dual ETH
Dual Gigabit ETH		×2	√		3.0×3	×1	×2	×2	√	5/12V	7-36V
IoT Dual Gigabit ETH		×2	√		3.0×2	×1	×2	×2	√	5/12V	5V	5G/4G support
IoT Base	√	×1		Gen2×1	2.0×2	×2	×2	×2	√	5/12V	7-36V	5G/4G supportRS232RS485ADC
PoE Base (B)	√	×1	√	Gen2×1	2.0×4	×2	×2	×2	√	5/12V	5V	RS232RS485
PoE UPS Base	√	×1	√	M.2 M	2.0×4	×1	×2	×2	√	5/12V	7-36V	UPS
PoE Base	√	×1	√		3.0×4	×2	×2	×2	√	5/12V	7-36V
Raspberry Pi official	②	×1	√	Gen2×1	2.0×4	×2	×2	×2	√	12V	12V
Wireless base		×1		M.2 B / Mini-PCIe	2.0×3		×1	×1	√	5/12V	5V or 7-36V	5G/4G support RS485 CAN rail-mount
UPS Wireless base		×1		M.2 B	2.0×3		×1	×1	√	5/12V	5V or 7-36V	With UPS 5G/4G support RS485 CAN rail-mount
NAS Mini Computer		×2	√	M.2 M×2/ Mini-PCIe	3.0×2		×2	×2	√		5V	dual M.2 M KEY slots
5″ touch screen	②	×1	√	M.2 M	2.0×4		×1	×2	√	5/12V	5V
7″ all-in-one		×1		M.2 M	2.0×4	used	×1	used	√	5/12V used	7-36V	touch screen camera speaker
13.3″ all-in-one		×1			2.0×2						12V	HD touch screen
13.3″ Magic Mirror		×1			2.0×2						12V	HD screen, Speech Assistant
Note	① USB 3.0 is equivalent to USB 3.2 Gen1 ② There's PoE header only on the Raspberry Pi official IO board without PoE circuit, that means additional PoE module is required for the official IO board to enable PoE feature. Unless otherwise specified, the PoE feature here stands for integrating 802.3af-compliant PoE circuit (5V/2.5A).

Connecting with Compute Module 4

standard CM4 socket and color-coded Raspberry Pi 40PIN GPIO headersuitable for all variants of Compute Module 4

Rich peripheral connectors

onboard connectors including CSI/DSI/HDMI/USB/ETH/PCIe/RS232/RS485

Application example

suitable for PoE Powered Raspberry Pi Projects, Or Other Industrial Context

for reference only, CM4,display, and cameras are NOT included.

What's On Board

1. CM4 socket suitable for all variants of Compute Module 4
2. 40PIN GPIO header
3. BOOT selection ON: CM4 would be booted from USB-C interface OFF: CM4 would be booted from eMMC or Micro SD card
4. Misc functional pins
5. USB Type-C power supply / programming 5V/2.5A power supply, also allows burning system image into Compute Module 4 eMMC variants
6. Status indicators ACT: Raspberry Pi operating status indicator PWR: Raspberry Pi power indicator
7. DISP 2x MIPI DSI display port
8. CAM 2x MIPI CSI camera ports
9. USB2.0 ports 4x USB2.0 ports, for connecting sorts of USB devices

10. HDMI ports 2x HDMI ports, supports dual 4K 30fps output
11. RTC battery holder supports CR1220 button cell
12. FAN header for connecting cooling fan, allows speed adjustment and measurement
13. PCIe Gen 2 × 1 socket forconnecting PCIe Gen 2 × 1 modules
14. Gigabit Ethernet connector Gigabit Ethernet RJ45 with PoE support, 10/100/1000M compatible
15. DC 5V output
16. RS485 with 600W lightningproof, anti-surge, and 15KV ESD protection,reversed optional 120R balancing resistor jumper
17. RS232 with TVS diode, anti-surge, and ESD protection
18. Buzzer
19. FAN_VDD/PoE selection cooling fan driving voltage: 12V or 5V PoE: enable (EN) or disable (DIS)

20. FE1.1S USB expansion chip
21. PCF52063ATL RTC chip
22. RTC/FAN I2C bus switch, SDA0/SCL0: I2C-10 is shared with CSI/DSIGPIO3/2: I2C-1 is shared with 40PIN header
23. IO logic level selection set the CM4 IO logic level as 3.3V or 1.8V

24. RTC interruption configuration PI-RUN: CM4 will reboot on RTC interruption GN-EN: CM4 powerdown on RTC interruption D4: D4 pin is triggered on RTC interruption
25. Micro SD card slot insert a Micro SD card with pre-burnt system, to start up Compute Module 4 Lite

Outline dimensions

Resources & Services

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WIKI:Compute_Module_4_PoE_Board_(B)

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Lieferumfang

1. Compute Module 4 PoE Board (B) x1

1

• Vendor:

  WaveShare

• Tags: Brand_waveshare,  Cat_board,  Cat_kit,  Compat_raspberry_pi,  Platform_raspberry_pi,  Sub_4s,  Sub_compute_module_4