User Manual
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Physical Dimensions (unit = mm/inch) 
Specifications 
LAN 
Ethernet 
• 4 switched 10/100 Mbps RJ45 ports 
• 1 optimized port for faster downstream 
communications with daisy-chained ioLogik 
E1200 units 
Note: The optimized daisy-chain port is not supported on wind industry 
devices (ioLogik E1261W-T, E1261H-T, or E1263H-T) 
Protection 
1.5 kV magnetic isolation 
Protocols 
Modbus/TCP, TCP/IP, UDP, DHCP, BOOTP, 
SNMP, HTTP, CGI, SNTP, SMTP 
WLAN (ioLogik 25xx-WL1) 
Standards  • IEEE 802.11a/b/g for wireless LAN  
• IEEE 802.11i for wireless security 
Spread Spectrum and 
Modulation (typical) 
• DSSS with DBPSK, DQPSK, CCK 
• OFDM with BPSK, QPSK, 16QAM, 64QAM 
• 802.11b: 
CCK @ 11/5.5 Mbps, DQPSK @ 2 Mbps,  
DBPSK @ 11 Mbps 
• 802.11a/g: 
64QAM @ 54/48 Mbps, 16QAM @ 36/24 Mbps,   
QPSK @ 18/12 Mbps, BPSK @ 9/6 Mbps 
Operating Channels 
(central frequency) 
• US: 
2.412 to 2.462 GHz (11 channels) 
5.18 to 5.24 GHz (4 channels) 
• EU: 
2.412 to 2.472 GHz (13 channels) 
5.18 to 5.24 GHz (4 channels) 
Security  • 64-bit and 128-bit WEP encryption  
• Full WPA/WPA2 Personal 
Transmission Rates 
• 802.11b: 1, 2, 5.5, 11 Mbps 
• 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 








