8
Aruba AP-120 Series Indoor Access Point
| Installation Guide
Figure 7
RJ-45 (Female) to DB-9 (Male) Modular Adapter Conversion
Power Connection
The AP-120 series AP has a single 5V DC power jack socket to support powering through an AC-to-DC
mains electric power adapter.
Connecting a Security Cable
To provide added security for the AP-121 or AP-125, you can attach a security cable to the back of the
unit (see
Figure 8
).
Figure 8
Security Lock Connection
Verifying Post-Installation Connectivity
The integrated LEDs on the AP can be used at this point to verify that the AP is receiving power and
initializing successfully (see
Table 3
). Refer to the
ArubaOS Quick Start Guide
for further details on
verifying post-installation network connectivity.
Table 3
AP-120 Series LED Meanings
LED
Color/State
Meaning
PWR
Green steady
Power on, device ready
Green flashing
System initializing
Red steady
System failed to initialize, contact TAC
ENET 0
(100/1000 Mbps)
Green/Amber off
No link
Green on
1000 Mbps link
Amber on
100 Mbps link
Green/amber blinking
Data activity
ENET 1
(100/1000 Mbps)
Green/Amber off
No Link
Green on
1000 Mbps link
Amber on
100 Mbps link
Green/amber blinking
Data activity
11A/N
Amber
Wireless link is legacy 11a
3
4
5
2
5
6
3
RJ-45
DB-9
Internal
Connections
TxD
GND
RxD
1
2
3
4
5
6
7
8
TxD
GND
RxD
RJ-45 Female
Pin-Out
Direction
Input
Output
DB-9 Male
Pin-Out
TxD
RxD
Ground
5
4
3
2
1
9
8
7
6
Direction
Input
Output
