C9115AXI-B – Wi-Fi 6 4×4:4 AP – Internal Antennas – 2.5G PoE Uplink
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C9115AXI-B Description
The C9115AXI-B is a Cisco Catalyst 9115AX Series indoor Wi-Fi 6 access point with internal antennas for controller-based wireless in the B regulatory domain. The access point has dual-band 2.4 GHz and 5 GHz radios with 4x4 MIMO, four integrated antennas at 3 dBi and 4 dBi, and one 100/1000/2500 Multigigabit Ethernet uplink that draws 20.4W of 802.3at power. On 802.3af power the radios drop to 2x2, the uplink to 1G and USB is disabled.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9115AXI-B |
|
Product type |
Indoor Wi-Fi 6 wireless access point |
|
Exact model record |
C9115AXI-B listed in Cisco FCC Declaration of Conformity records |
|
Ordering pattern |
C9115AXI-x with x as the regulatory-domain suffix |
|
Management model |
Controller-based access point |
|
Software support |
Cisco Unified Wireless Network Software Release 8.9 or later and Cisco IOS XE Software Release 16.11 or later |
|
Supported controllers |
Cisco Catalyst 9800 Series plus Cisco 3504, 5520, 8540, and Virtual Wireless Controller |
|
Wireless standard |
Wi-Fi 6 / IEEE 802.11ax |
|
Radio and MIMO profile |
Dual-band 2.4 GHz and 5 GHz radios with 4×4 MIMO and four spatial streams |
|
Antenna design |
Four integrated dual-band internal antennas on C9115AXI models |
|
Ethernet interfaces |
1 x 100/1000/2500 Multigigabit Ethernet RJ-45, RJ-45 console, and USB 2.0 |
|
PoE feature mode |
802.3at supports 4×4 radios, 2.5G link, USB, and 20.4W max PoE draw; 802.3af reduces radios to 2×2, link to 1G, disables USB, and lists 13W max PoE draw |
Application Scenarios
In an open office, the C9115AXI-B mounts on the ceiling and covers desks with its four internal dual-band antennas, so no external antennas need cabling.
A school or training center can place the C9115AXI-B in classrooms, where its 4×4 Wi-Fi 6 radios serve many laptops and tablets on the 2.4 GHz and 5 GHz bands.
On a wiring-closet switch with 802.3at PoE+ ports, the C9115AXI-B joins a Catalyst 9800 controller and uses its 2.5G Ethernet uplink to carry the full 4×4 radio traffic.
Product Comparison
|
Parameter |
C9115AXI-B |
C9115AXE-B | |
|---|---|---|---|
|
Regulatory domain |
-B |
-B |
-H |
|
Wireless standard |
Wi-Fi 6 / 802.11ax |
Wi-Fi 6 / 802.11ax |
Wi-Fi 6 / 802.11ax |
|
Spatial streams |
4×4:4 |
4×4:4 |
4×4:4 |
|
Antenna |
Four integrated dual-band internal antennas |
Four RP-TNC antenna connectors for external dual-band antennas |
Four integrated dual-band internal antennas |
|
Antenna gain |
2.4 GHz 3 dBi and 5 GHz 4 dBi internal antenna gain |
Certified for external antennas up to 6 dBi on 2.4 GHz and 5 GHz |
2.4 GHz 3 dBi and 5 GHz 4 dBi internal antenna gain |
|
Uplink interface |
1 x 100/1000/2500 Multigigabit Ethernet |
1 x 100/1000/2500 Multigigabit Ethernet |
1 x 100/1000/2500 Multigigabit Ethernet |
|
Maximum PoE consumption (802.3at) |
20.4W |
21.4W |
20.4W |
C9115AXI-B and C9115AXE-B are both Wi-Fi 6 4×4 access points with the -B suffix, and the antenna hardware separates them: C9115AXI-B has four integrated dual-band antennas at 3 dBi on 2.4 GHz and 4 dBi on 5 GHz, while C9115AXE-B has four RP-TNC connectors for external dual-band antennas certified up to 6 dBi. Designs that need external antennas should order C9115AXE-B, whose 802.3at draw is listed at 21.4W against 20.4W for C9115AXI-B, a difference that counts when a switch PoE budget is tight. The -H suffix is the only table difference between C9115AXI-B and C9115AXI-H, so a site in the -H regulatory domain orders C9115AXI-H instead.
Ordering Checklist
- Access point subscription: Order one LIC-CW-E (Essentials) or LIC-CW-A (Advantage) unified subscription for each access point joining a Catalyst CW9800 controller. The access point needs it to join, and the unified license also needs IOS-XE 17.15.x or later on the controller.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9115AXI-B | Product type | Indoor Wi-Fi 6 wireless access point |
| Exact model record | C9115AXI-B listed in Cisco FCC Declaration of Conformity records | Ordering pattern | C9115AXI-x with x as regulatory-domain suffix |
| Management model | Controller-based access point | Minimum software release | Cisco Unified Wireless Network Software Release 8.9 or later; Cisco IOS XE Software Release 16.11 or later |
| Supported controllers | Cisco Catalyst 9800 Series, Cisco 3504, 5520, 8540, and Virtual Wireless Controller | Wireless standard | Wi-Fi 6 / IEEE 802.11ax |
| Radio design | Dedicated 2.4 GHz radio and 5 GHz radio | MIMO profile | 4×4 MIMO with four spatial streams on both bands |
| Internal antennas | Four integrated dual-band antennas on C9115AXI models | 2.4 GHz antenna gain | 3 dBi peak gain for integrated internal antennas |
| 5 GHz antenna gain | 4 dBi peak gain for integrated internal antennas | Ethernet uplink | 1 x 100/1000/2500 Multigigabit Ethernet RJ-45 |
| Console port | RJ-45 management console port | USB port | USB 2.0 |
| Status indicator | Multi-color status LED | PoE input options | 802.3at PoE+, 802.3bt Cisco UPOE, AIR-PWRINJ6=, 802.3af PoE, or AIR-PWRINJ5= |
| 802.3at feature mode | 4×4 radios, 2.5G link speed, USB enabled, and 20.4W max PoE consumption for Catalyst 9115I | 802.3af feature mode | 2×2 radios, 1G link speed, USB disabled, and 13W max PoE consumption |
| Power negotiation note | LLDP/CDP should be enabled for proper power negotiation | Dimensions | 8.0 x 8.0 x 1.5 in. (20.3 x 20.3 x 3.8 cm) |
| Weight | 1.98 lb. (0.9 kg) | Operating temperature | 32 to 122 F (0 to 50 C) |
| Operating humidity | 10% to 90% noncondensing | Storage temperature | -22 to 158 F (-30 to 70 C) |
| Operating altitude test | 40 C at 9843 ft. | Environmental feature shift | Above 40 C ambient, radios shift from 4×4 to 2×2, Ethernet downgrades to 1G, and USB is disabled |
| DRAM | 2048 MB DRAM and 1024 MB flash | Mounting bracket options | AIR-AP-BRACKET-1 low-profile bracket or AIR-AP-BRACKET-2 universal bracket |
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Questions & Answers
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What happens to C9115AXI-B when ambient temperature rises above 40C?
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Which mounting brackets does C9115AXI-B support?
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Which power sources can feed C9115AXI-B and what must be enabled for negotiation?
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