Hewlett Packard Enterprise APIN0555 Users manual
Aruba 555 Access Point
Installation Guide
The Aruba 555 Access Point (AP-555) is a higher-performance, multi-radio wireless device that can be deployed
in either controller-based (ArubaOS) or controllerless (InstantOS) network environments. This access point
delivers high-performance concurrent 2.4 GHz 802.11ax Wi-Fi (Wi-Fi 6) functionality with 4x4 MIMO radio and 5
GHz 802.11ax Wi-Fi (Wi-Fi 6) functionality with 8x8 MIMO radio, while also supporting legacy 802.11 a/b/g/n/ac
wireless services.
Wired Ethernet ports located on the back of this access point are used to connect the device to the wired
networking infrastructure (wired speeds up to 5 Gbps are supported by both ports) and to provide POE power
(802.3at class 4 or 802.3bt class 5) to the device. In addition to both Wi-Fi radios, this AP also incorporates a
Bluetooth Low Energy (BLE) and Zigbee radio, supporting a variety of use-cases and services, such as locationing
and IoT.
Hardware Overview
The following sections outline the hardware components of the AP-555.
Figure 1 Aruba AP-555 (front view)
Figure 2 Aruba AP-550 (LEDs)
XXX-IG-0X | Month Year 1
LEDs
The LED displays located on the front panel of the access point indicate the following functions:
System Status
The System Status LED indicates the operating condition of the access point, see Table 1.
Table 1 System Status LEDs
Color/State Meaning
Off Device powered off
Green- solid Device ready, fully functional, no network restrictions
Green- blinking
Green- flashing pattern 1
1
Device booting, not ready
2
Device ready, fully functional, either uplink negotiated in sub-optimal speed
(<1Gbps)
3
Green- flashing pattern 2
Deep sleep mode
Amber- solid Device ready, restricted power mode (limited PoE power available, or IPM
restrictions applied), no network restrictions
Amber- flashing pattern 1 Device ready, restricted power mode (limited PoE power available, or IPM
restrictions applied), uplink negotiated in sub-optimal speed (<1Gbps)
Red System error condition - Immediate attention required
1 Blinking: one second on/one second off, 2 second cycle.
2 Flashing Pattern 1: mostly on, briefly off, 2 second cycle.
3 Flashing Pattern 2: mostly off, briefly on, 2 second cycle.
Radio Status
The Radio Status LED indicates the operating mode of the access point’s radios. See Table 2.
Table 2 Radio Status LEDs
Color/State Meaning
Off AP powered off, or both radios disabled
Green- solid Both radios enabled in access mode
Green- blinking
1
One radio enabled in access mode, other disabled
Amber- solid Both radios enabled in monitor mode
Amber- blinking One radio enabled in monitor mode, other disabled
Blue- solid All three radios enabled in access mode
Blue- blinking Two 5GHz radios in access mode, 2.4GHz radio disabled
Alternating
2
Green/Amber
Blue/Amber
1 Blinking: one second on/one second off.
2 Alternating: one second each color, 2 second cycle.
Green: one radio in access mode
Amber: one radio in monitor mode
Blue: both 5GHz radios in access mode
LED Display Settings
The LEDs have three operating modes that can be selected in the system management software:
2 Aruba 555 Access Point| Installation Guide
Default mode: Refer to Table 1 and Table 2
1: NC
2: RXD
3: TXD
4: GND
5: GND
Off mode: LEDs are off
Blink mode: LEDs blink green
Figure 3 AP-555 access point (rear view)
This device is intended for indoor use in professional healthcare facilities.
Bluetooth Low Energy Radios
AP-555 is equipped with an integrated BLE radio that provides the following capabilities:
location beacon applications
wireless console access
IoT gateway applications
Console Port
The 5-pin Micro-B connector is located on the back of this device. Use the proprietary AP-CBL-SERU cable for
direct management of this device when connected to a laptop or serial console (a standard USB cable cannot be
used for this interface). For pin-out details, refer to Figure 4.
Figure 4 Micro-B Port Pin-out
Ethernet Ports
The Aruba 555 access point is equipped with two active Ethernet ports (Eth0 and Eth1), shown in Figure 3. Both
ports are 100/1000/2500/5000 Base-T, auto-sensing MDI/MDX, which supports uplink connectivity when linked
by an Ethernet cable. Refer to Figure 5 for a detailed port pin-out.
Aruba 555 Access Point | Installation Guide 3
Figure 5 Ethernet Port Pin-Out
1000Base-T Gigabit
Ethernet Port
RJ45 Female
Pin-Out
Signal Name
1
2
3
4
5
6
7
8
BI_DC+
BI_DC-
BI_DD+
BI_DD-
BI_DA+
BI_DABI_DB+
BI_DB-
Function
Bi-directional pair +C
Bi-directional pair -C
Bi-directional pair +D
Bi-directional pair -D
Bi-directional pair +A
Bi-directional pair -A
Bi-directional pair +B
Bi-directional pair -B
Kensington Lock Slot
The 555 access points are equipped with a Kensington lock slot for additional physical security.
USB Interface
The top of this access point is equipped with a USB-A port that is compatible with cellular modems. When active,
this port can supply up to 5W/1A to a connected device.
Figure 6 AP-555 (USB)
4 Aruba 555 Access Point| Installation Guide
Reset Button
The reset button located on the bottom of the device can be used to reset the access point to factory default
settings or turn off/on the LED display.
Use one of the following methods to reset the access point to factory default settings:
To reset during normal operation:
1.Hold the reset button for more than 10 seconds while the access point is running.
2.Release the reset button.
To reset during power up, hold the reset button while the access point is powering up.
The system status LED will flash again within 15 seconds indicating that the reset is completed. The access
point will now continue to boot with the factory default settings.
To toggle the LED display between Off and Blinking:
During the normal operation of the access point, shortly press and release the reset button using a small,
narrow object, such as a paperclip.
Power
Both ethernet ports support PoE-in (AP is a PoE-PD device), allowing the device to draw power from compliant
PoE power sources. If PoE is not available, the access point has a single 48V DC power import to support the APAC-48V36C AC-to-DC power adapter kit (sold separately). When both PoE and DC power sources are available,
the DC power source takes precedence. In that case, the access point simultaneously draws a minimal current
from the PoE source(s). In the event that the DC source fails, the access point switches to the PoE source(s).
If the 555 access point is powered by both PoE ports simultaneously, it can combine power from both sources in
either shared or prioritized mode. When Eth0 is prioritized, the access point simultaneously draws a minimal
current from the Eth1 source. In the event that the prioritized port fails, the access point switches to the
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