ZyXEL Communications ONU-634HA Series User manual

Copyright © 2007. All rights reserved
ONU-634HA Series
Optical Network Unit with Transceiver
User’s Guide
Version 1.00
8/2007
Edition 1

ONU-634HA Series User’s Guide
2
Introduction
The ONU-634HA is an optical network unit (ONU) that allows
you to enjoy high-speed Internet access over optical
networks. The ONU-634HA comes with one fiber and four 10/
100Mbps Ethernet ports. No configuration is required. On the
ONU-634HA, all device configuration is done remotely by the
OLT (Optical Line Terminal). Once you have connected the
hardware, you are ready to enjoy Internet access.
Two ONU-634HA models are discussed in this guide: ONU-
634HA-11 (with a 10km transceiver) and ONU-634HA-12
(with a 20km transceiver).
1 Hardware Connections
1PON:Follow the steps below to connect an SC-type,
single-mode optical cable to the PON port for Internet
access.
"Only qualified technicians should perform these
actions! Please skip this section if you are not a
qualified technician.

3
ONU-634HA Series User’s Guide
aHold the ONU-634HA upright, push the top cover
forward with the LEDs (lights) facing you, then lift up
the top cover to remove it.

ONU-634HA Series User’s Guide
4

5
ONU-634HA Series User’s Guide
bWind the fiber-optic cable around the tray in the ONU-
634HA.
cConnect the fiber-optic connector into the PON port.
dPut the top cover back.
"To avoid possible eye injury, do NOT look into
an operating fiber-optic module’s connector.
2LAN:Use the included Ethernet cable to connect the LAN
port to a computer.
3POWER: Use the included power adaptor to connect this
power socket to an appropriate power source.
2
3
1

ONU-634HA Series User’s Guide
6
1.1 Check the LEDs (Lights)
•ThePOWER LED turns steady on when you connect the
ONU-634HA to the power supply.
•ThePON LED turns on when the fiber connection is avail-
able.
•EachLAN LED turns on when the corresponding LAN port is
properly connected.
The following table describes the LEDs in detail.
Label Color Status Description
POWER Green On The ONU-634HA is receiving power
and is ready.
Off The ONU-634HA is not receiving
power.
PON LINK Green On Connection to the optical network is
up.
Blinking Connection to the optical network is
down.
PON
STATUS
Green On The ONU-634HA is receiving good
optical signals from the OLT
successfully.
Red Blinking The ONU-634HA is receiving error
signals or no optical signals from the
OLT.

7
ONU-634HA Series User’s Guide
2 Test Your Internet Connection
After you have connected the hardware and turned on the
ONU-634HA, open a web browser on your computer and go
to any web site (for example, www.zyxel.com) to test your
Internet connection.
3 Hardware Installation
The ONU-634HA can be vertically placed on a desktop with
the included stand or mounted on a wall.
3.1 Standing Instructions
Place the right panel of the ONU-634HA (when facing the
LEDs) onto the included stand until the ONU-634HA fits in the
stand completely. Make sure the label names of the LEDs are
displayed correctly and not upside-down. Place the ONU-
LAN 1 ~ 4 Yellow On The LAN port is connected to an
Ethernet device at 100 Mbps.
Blinking The ONU-634HA is sending or
receiving data at 100 Mbps.
Green On The LAN port is connected to an
Ethernet device at 10 Mbps.
Blinking The ONU-634HA is sending or
receiving data at 10 Mbps.
Off No Ethernet device is connected to
the LAN port.
Label Color Status Description

ONU-634HA Series User’s Guide
8
634HA and the stand on a flat, level surface that is strong
enough to support the weight of the ONU-634HA with
connection cables.
3.2 Wall-mounting Instructions
Complete the following steps to hang your ONU-634HA on a
wall.

9
ONU-634HA Series User’s Guide
1Select a position free of obstructions on a sturdy wall.
2Drill two holes large enough for the M4 tap screws. Make
sure the distance between the centers of the holes is
140mm.
"Be careful to avoid damaging pipes or cables
located inside the wall when drilling holes for the
screws.
3Do not insert the screws all the way into the wall. Leave a
small gap of about 0.5 cm between the heads of the
screws and the wall.

ONU-634HA Series User’s Guide
10
4Make sure the screws are snugly fastened to the wall.
They need to hold the weight of the ONU-634HA with the
connection cables.
5Align the holes on the back of the ONU-634HA with the
screws on the wall. Hang the ONU-634HA on the screws.
The following are dimensions of an M4 tap screw and
masonry plug used for wall mounting. All measurements are
in millimeters (mm).
Troubleshooting
1The POWER light is not on when I connect power to the
ONU-634HA.
• Check that the power source is turned on.