User's Manual

Installing the ExtremeWireless Indoor
AP3912i Access Point
Overview of the AP3912i
The AP3912i is a wall plate 11ac AP that lets you extend your
Wireless LAN. This model is ideal for installations that have
unused ports on existing Ethernet jacks because it has
minimal or no impact on the configuration of the
infrastructure switches (with only the requirement to
enable one extra port for the AP). Pass-through ports allow
wired devices, such as IP phones, to be connected. This wall
plate AP replaces existing Ethernet wall plates, eliminating
the need for mounting brackets. The AP3912i is designed
with four single-band internal antennas for indoor use only.
The AP enclosure is not plenum rated. (Operating
temperatures are 0ºC~40ºC
.)
The AP3912i model has the following specifications:
• Radios: Two concurrent WiFi radios (2.4 GHz and 5 GHz)
and one radio that can operate as Bluetooth or ZigBee.
•LEDs: 6 (Figure 1)
• Power: 802.3at (PoE+) compliant for full functionality
• The AP3912i supports the 802.11ac and 802.11n wireless
standards, with full backward compatibility with legacy
802.11abg.
• The AP3912i interoperates fully with Wireless LAN,
including support for VoWLAN, branch office mode,
guest services, RTLS, availability and mobility.
• Enabled for use with an ExtremeCloud
TM
entitlement
For detailed installation information about the AP3912i, see
the ExtremeWireless AP3912i Installation Guide.
Power Requirements for the PSE Port
The AP3912i uses Power over Ethernet (PoE) as follows.
Power Connections and Reset Button
The AP3912i has three LAN ports (P1, P2, and P3/PSE), and
one pass-through port. On the pass-through port, power
and connection attributes (such as speed and duplex) of
devices are dictated by the characteristics of the
corresponding switch model and by the port that the
backend pass-through port is connected to.
Figure 1 Power Connections and Reset Button
Note: The AP3912i requires a minimum base firmware of
10.11.02.
Table 1 Power Sources
Power Source Description
PoE 802.3at Power is enabled on the Client PSE port
and the PSE LED is green.
PoE 802.3af Power is disabled on the Client PSE port
and the LED is off (not green).
Note: LAN connectors with shrouds will not fit into the
ports. Remove the shroud or use an optional jumper cable.
The Reset button (Figure 1) is to the right of the power
connections.
LEDs
LEDs are located on one side of the AP.
Figure 2 LEDs on Side of AP
Verifying the AP3912i Box Contents
Verify the contents of the box as listed in the following
table:
Mounting and Connecting the AP3912i
Use these instructions as guidelines for mounting and
connecting the AP3912i easily and safely. The installation of
the AP3912i should be performed by a professional installer
Status Radio 2 (2.4 GHz)
LAN 1 (Ethernet 1) PSE Client Port (PoE)
Radio 1 (5 GHz) BLE
Table 2 Contents of the AP3912i Box
Quantity Item
1AP3912i Quick Reference
1 ExtremeCloud Quick Start Card
1 WS-AP3912i AP
1 Wall plate bracket
The following hardware is included:
2 Screw-in wall anchors
2Pan-head machine screws
2Flat-head wood screws
Note: Before mounting the AP3912i, read the RF Safety
Distance section.
Electrical Hazard: Only qualified personnel should perform
installation procedures.
to ensure proper operation and compliance with local
safety guidelines.
Attach the AP3912i to an indoor wall or junction/gang box
only. The wall plate bracket is included with the AP box
contents.
Figure 3 Mounting Bracket
Mounting the AP3912i to a Wall
1 Using the mounting bracket (Figure 3) as a guide,
choose a location where it is feasible to place the AP’s
center. The bracket should have the captive screw on the
left, and the large, flat part of the bracket against the
wall. Decide which two holes to use to mount the bracket
to the wall.
2 Mark the two hole centers.
3 For drywall/plasterboard walls, drill two holes using a 1/
4” or 6mm diameter drill bit.
4 For drywall/plasterboard walls, screw the plastic anchors
into the holes.
5 Attach the wall plate bracket using the two wood screws.
Torque the screw to 12.0 in-lbs.
6 Connect the power and attach the AP to the mounting
bracket, as described below.
Mounting to a Junction/Gang Box
1 Place the bracket over the junction box with the captive
screw on the left side (Figure 3) and the large, flat plate
against the wall. The bracket should be attached to a
vertical surface.
Table 3
Number Description
1 AP Mounting Tab
2Captive Screw
2 Align two of the bracket holes with two of the box’s
holes. Use bracket holes that are closest to the center of
the bracket. Make sure that the entire box is covered by
the bracket.
3 Using the two pan head machine screws, attach the
bracket to the box using the aligned holes. Torque the
screws to 12.0 in-lbs.
4 Connect the power through the bracket to the AP, and
attach the AP to the mounting bracket, as described
below.
Figure 4 Back View
Connecting & Powering the AP3912i
Connect the building LAN1 wire (either PoE at or PoE af) to
the black RJ-45 connector, or associated punch-down
block, located on the rear of the AP.
• If PoE+ (802.3at) is connected, then the P3/PSE port will
offer PoE (802.3af) to connecting clients.
• If PoE (802.3af) is connected, then there will not be any
power on the P3/PSE port.
Mounting the AP to the Bracket
1 Line up the AP holes (see the arrows in Figure 4) on the
rear with the two "L" shaped angled tabs near the right
side of the bracket (Figure 3, item #1).
2 Slide the AP approximately 1/4” to the left on the two
bracket tabs.
3 Attach and tighten the captive screw (Figure 3) to the
AP so that the AP is attached to the bracket. Torque the
screw to 7.0 in-lbs.