Hi Vladislav,
There are other differences between the 1230AG and the 1130AG as shown below. Note the PoE support,memory and Antenna support in particular (the 1130 has built-in antennas). The other important fact is that the 1230 is first generation and is likely to be EoL before the 1130;
Cisco Aironet 1230AG Series Access Point - First-generation dual-band lightweight or autonomous access point with dual-diversity antenna connectors for challenging RF environments
Two high-performance IEEE 802.11a and 802.11g radios offering 108 Mbps of capacity
2.4 and 5 GHz dual-diversity RP-TNC connectors for external antenna support
Available in either a lightweight version or an autonomous version that may be field-upgraded to lightweight operation
Rugged metal case
16 MB of memory with 8 MB of storage
Operating temperature: -4 to 131?F (-20 to 55?C)
Inline power support (Cisco pre-standard)
Console port for management
Support for the Cisco Self-Defending Network, NAC, WPA, and 802.11i/WPA2
Complete with integrated and secure mounting system
UL2043-rated for placement in plenum areas
Cisco Aironet 1130AG Series Access Point - Dual-band lightweight or autonomous access point with integrated antennas for easy deployment in offices and similar RF environments
Two high-performance IEEE 802.11a and 802.11g radios offering 108 Mbps of capacity
2.4 and 5 GHz integrated diversity omnidirectional antennas for easy deployment without the need for external antennas
Available in either a lightweight version or an autonomous version that may be field-upgraded to lightweight operation
Low-profile plastic case
32 MB of memory with 16 MB of storage
Operating temperature range of 32 to 104?F (0 to 40?C)
Inline power support (Cisco pre-standard and 802.3af)
Console port for management
Support for the Cisco Self-Defending Network, NAC, WPA, and 802.11i/WPA2
Integrated and secure mounting system
UL2043-rated for placement in plenum areas
From this excellent doc;
Cisco Aironet Wireless Access Points Solution Overview
http://www.cisco.com/en/US/products/ps6087/prod_brochure0900aecd8035a015.html
Hope this helps!
Rob
