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© Sealevel Systems, Inc.
SeaI/O | SL9049 11/2021
SeaI/O Configurations & Specifications
SeaI/O Wireless Specifications
All wireless Wi-Fi SeaI/O modules share a common networking engine. This subsystem comprised of a wireless
MCU module that integrates an ARM Cortex-M4 MCU and includes an 802.11 b/g/n radio, baseband, and MAC
with a powerful crypto engine for fast, secure Internet connections with 256-bit encryption. It supports
Infrastructure and access point modes and supports WPA2 personal security. The engine includes embedded
TCP/IP and TLS/SSL stacks, HTTP server, and multiple Internet protocols.
Standards
2.4 GHz IEEE 802.11b/g/n WLAN
Channels
1
–
11
Frequency Range
2.412
–
2.484 GHz
TX Power
17 dBm at 1 DSSS
17.25 dBm at 11 CCK
13.5 dBm at 54 OFDM
RX Sensitivity
–
94.7 dBm at 1 DSSS
–
87 dBm at 11 CCK
–
73 dBm at 54 OFDM
Application Throughput
UDP: 16 Mbps
TCP: 13 Mbps
Range
300’ line
-of-sight (with no obstructions or interference)
WLAN
2.4 GHz IEEE 802.11b/g/n WLAN
Supported Protocols: Modbus/TCP, TCP/IP, UDP, DHCP,
and HTTP
TCP/IP Stack
Infrastructure and Access Point Modes
Powerful Crypto Engine for Fast, Secured WLAN
Connections with 256-Bit Encryption
WEP, WPA1 and WPA2 Personal and Enterprise Security
Antenna Considerations
The wireless device ships with an approved Wi-Fi antenna. Using a different antenna is not supported and
it may invalidate regulatory certification.