Technical Specifications¶

The Synapse Wireless E20 gateway is an ARM Cortex-A9 based Linux computer running Ubuntu. It incorporates a 2.4 GHz Synapse RF module that connects the device to SNAP-powered mesh networks. The gateway has Wi-Fi and Ethernet network connectivity, and serial connectivity is available through a Micro-USB connection. This arrangement provides for a wide range of possibilities for monitoring sensor networks, controlling remote devices, and driving the Internet of Things

Hardware Specifications¶

OS	Ubuntu 18.04 LTS for v2.0.0 and above Ubuntu 14.04 LTS for v1.2.3 and below
CPU	ARM Cortex-A9, 800MHz (Freescale i.MX6-S)
Flash	4GB eMMC
RAM	512M DDR3, 400MHz
Network	10/100 Ethernet, WiFi, SNAP 2.4 GHz
USB host	1 type A
USB client	1 Micro-USB - SiLabs CP2102
Min Operating Temperature	-40°C
Max Operating Temperature	70°C
Board Size	15.5cm x 9cm x 2cm
Unit weight	582 grams (without antennas)
Input Voltage	11-26V DC AC power supply sold separately. See synapsewireless.com for more information.
Storage Expansion	µSD
LEDs / Buttons	4 LEDs 3 Buttons

Note

When running an application that demands unusually intensive CPU/Memory resources at 70C, the temperature on the processor core might reach up to 90C resulting in performance degradation. For more information, see http://cache.freescale.com/files/32bit/doc/app_note/AN4579.pdf.

Note

This equipment is certified by Underwriters Laboratories for operation in a maximum ambient temperature of 65°C. The product safety standard to which this unit is evaluated and certified, IEC 60950-1, and UL 60950-1 for the US and Canada, specifies a maximum temperature limit of 70°C on metal surfaces that may be touched. During operation, there is a slight temperature rise on the surfaces of the E20. Therefore, when installed into an ambient environment at 70°C, the surface temperatures on the E20 may exceed the limit of 70°C.

Approved FCC/ISED Antennas¶

SNAP Antennas¶

Part Number	Type	Gain	Impedance	Application	Min. Separation
Pulse W1027	Dipole (quarter-wave RPSMA)	3.2 dBi	50 Ω	Fixed/Mobile	20 cm.
HyperLink HG2405RD-RSP	Dipole (quarter-wave RPSMA)	5.5 dBi	50 Ω	Fixed/Mobile	20 cm.
Pulse RO2408NF	Whip (RPSMA)	8.0 dBi	50 Ω	Fixed/Mobile	20 cm.
Linx Technologies ANT-2.4-CW-RAH-RPS	Helical Whip (quarterwave RPSMA)	1.6 dBi	50 Ω	Fixed/Mobile	20 cm.
Linx Technologies ANT-2.4-CW-RH-RPS	Helical Whip (quarterwave RPSMA)	-0.9 dBi	50 Ω	Fixed/Mobile	20 cm.

Wi-Fi Antennas¶

Part Number	Type	Gain	Impedance	Application	Min. Separation
Pulse W1030	Dipole (quarter-wave RPSMA)	2.0 dBi	50 Ω	Fixed/Mobile	20 cm.

For more information on approved antennas, please consult the manufacturer’s website.

Warning

RF Exposure. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Note

Antenna and transmitters may be co-located or operated in conjunction with this device only if the transmitters do not simultaneously transmit. Otherwise, additional regulatory requirements will apply.

E20 Dimensions¶

Mounting Instructions

Troubleshooting