ADTRAN 621i XGS-PON ONT User manual

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Figure 1. 621i ONT
DESCRIPTION
The 621i XGS-PON ONT is a Single Family Unit (SFU) Optical
Network Terminal (ONT) that leverages XGS-PON technology for
delivering premium 1GigE services.
gNOTE
The “i” in 621i designates that the customer UNI is a 1G Ethernet
interface, as opposed to a 10G Ethernet interface on the non-i
version.
The 621i ONT is an indoor unit that supports up to 1 Gbps data
rates.
This document supports the following versions of the 621i ONT.
Figure 1 illustrates the front LED display.
Description P/N
621i XGS-PON ONT with NA power adapter
(included)
1287844F1
621i XGS-PON ONT with UK power adapter
(included)
1287844F2
FEATURES
The basic features of the 621i ONT include the following:
■10 Gig PON SC/APC connector (WAN)
■Customer Interfaces
♦1G Ethernet (RJ-45) Interface
■Remote activation and deactivation
■Remote firmware upgrades and downgrades
■Remote OMCI management as per ITU-T G.988
Refer to the following table for a description of each feature in
Figure 2.
Figure 2. ONT Interfaces
Callout Description
1LEDs
2 10Gig XGS-PON SC/APC connector (WAN)
3 1G RJ-45 LAN interface
4 Reset Button
5 Power Connection for the Supplied AC to DC Power
Converter (12 V)
6 On/Off button
ON/OFF Power Reset GE Optical
1
2
3
5
4
6
SDX
621i XGS-PON ONT
1GE SFU ONT
January 2020
61287844F1-13A

261287844F1-13A
Step 1: Install the 621i ONT
There are two options to install the 621i ONT: Desk Top and Wall
Mount. Options are described below.
gNOTE
Included with the 621i ONT is a 5-foot (1.5 m) power cord. All
installation locations should be within 5 feet (1.5 m) of a wall
outlet.
Desk Top Installation
The 621i ONT can be located on a desktop.
fWARNING!
Ensure that the 621i ONT does not come in contact with water or
other liquids.
fCAUTION!
Ensure that the 621i ONT is not located in direct sunlight or next
to any thermal obstructions.
Wall Mounting
Refer to Figure 3 when installing the 621i ONT on a wall.
1. Decide on a location for the 621i ONT. Mount below eye-
level so the LEDs are visible.
gNOTE
Supplied hardware is intended for drywall mounting only. For
mounting on surfaces other than drywall, obtain the appropriate
mounting hardware and follow the provided instructions.
Figure 3. Wall Mount Installation
2. Use the keyholes on the rear of the 621i ONT as a template
and mark the wall accordingly.
3. Drill holes using a 1/4” drill bit into the marks on the wall.
4. Use a hammer to lightly tap the included wall anchors into
the drilled holes until anchor is flush with the wall.
Wall Anchor (2x)
Mounting Screw (2x)
Power
Power is provided by a 12 V DC Power Adapter that is included
with the 621i ONT. The power adapter operates from a power
source of 100 to 240 V AC, 50 - 60 Hz. For the United States and
Canadian applications, an NRTL Listed Limited Power Source
(LPS) is needed. For deployment in international applications, an
LPS specifically approved for that country, as indicated by a CE
Mark, is needed.
Resetting the ONT
A reset button is available if the 621i ONT needs to be rebooted.
To reset the 621i ONT, press the RESET button for 5 seconds or
longer.
INSTALLATION
After unpacking the unit, inspect it for damage. If damage is
noted, file a claim with the carrier and then contact ADTRAN. For
more information, refer to the warranty.
Installation Guidelines
The following are guidelines for basic installation of the 621i ONT.
Be sure to route and secure the fiber and cables in a manner that
will prevent damage.
fWARNING!
Read all warnings and cautions before installing or servicing the
621i ONT.
Installation Overview
To install the 621i ONT, you will need to complete the following
steps:
■“Step 1: Install the 621i ONT”
■“Step 2: Connect Ethernet”
■“Step 3: Connect Fiber”
■“Step 4: Connect Power”
Required Tools:
Standard technician tools and those listed below are required for
installing the 621i ONT.
■Optical power meter with wavelength filtering
■Fiberscope or videoscope
■#2 Phillips-head screw driver
■Drill
■1/4-inch drill bit
■Hammer
For fiber optics connections, the following are required:
■ODC Fiber Cleaning Tool

61287844F1-13A 3
5. Install two screws (included) into the anchor heads. Leave
approximately 1/4 inch (6 mm) protruding from the mounting
surface.
6. Slide the 621i ONT over the screws and exert a small
amount of downward pressure to ensure that the top of the
slots are resting on the shafts of the screws.
gNOTE
Alternately, wall anchors are not needed if mounting directly to
wall studs.
Step 2: Connect Ethernet
Refer to Figure 2 and insert a Category 5E (or better) RJ-45 cable
into the port labeled GE until there is an audible “click”.
Step 3: Connect Fiber
fCAUTION!
To prevent breaking the fiber, do not exceed the fiber bend radius
of 3.5 in (8.9 cm).
CCAUTION!
LASER RADIATION - 1310 nm to 1600 nm
Do not view directly with optical instruments.
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
Fiber is installed in an SC/APC connector (OPTICAL) located on
the rear of the 621i ONT (see Figure 2). Complete the following
steps to install fiber.
1. Remove the Dust Cover from the SC/APC Connector.
2. Clean the end of the Incoming Fiber Connector.
3. Before installing the fiber, use an optical power meter to
measure the dB power. The level should not exceed –8 dB.
Use an appropriate bi-directional optical attenuator if the
power levels are at or above –8 dB. A level between –12 and
–18 dBm is acceptable.
4. Connect the Incoming Fiber Connector.
Step 4: Connect Power
To connect power to the 621i ONT, complete the following steps:
1. Plug the supplied 12 V AC/DC Power Adapter into the 12V
connection on the rear of the 621i ONT.
2. Connect the Power Adapter to a standard 100 - 240 V AC
outlet.
3. Verify power is on by checking the power LED on the 621i
ONT. The LED should be green, indicating local power is on.
gNOTE
ADTRAN recommends only using the DC power adapter that is
provided with the unit.
fCAUTION!
For United States and Canadian applications, the DC Power
Adapter must be an NRTL Listed LPS power supply. For
International applications, the DC Power Adapter must be an LPS
power supply specifically approved for that country.
LEDS
When the 621i ONT first powers up it performs self-tests. Once
the power up self-tests are complete, the status LEDs will reflect
the state of the hardware. The table below details the status
indicated by the LEDs.
LED Status Indication
Power 

2
Off
Green
Green Flashing
Power is unavailable
Power is on, self-test passed,
normal operation
Unit is powering up
Optical 

2
2

Off
Green
Green Flashing
(Fast)
Green Flashing
(Slow)
Red
Power is available
ONU ranged and authenticated,
is not configured to a service
ONU is ranging and
synchronization process in
progress
ONU is ranging and
synchronization process is
complete, is configured with
any triple play service
No fiber connected or Link
failure (LOF/LOS)
LAN 

2
Off
Green
Green Flashing
No Ethernet connectivity
Ethernet connectivity detected,
no activity
Activity from Ethernet interface
Alarm/
Update


2

Off
Green
Green Flashing
Red
No alarm detected, no ongoing
software update
ONU software download
complete
ONU software download
started/ ongoing
ONU software not operational/
ONU failure

CAUTION!
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY
HANDLING PRECAUTIONS REQUIRED
Warranty: ADTRAN will replace or repair this product within the warranty period if it does not
meet its published specifications or fails while in service. Warranty information can be
found online at www.adtran.com/warranty.
Trademarks: Brand names and product names included in this document are trademarks,
registered trademarks, or trade names of their respective holders.
Copyright © 2020 ADTRAN, Inc. All Rights Reserved.
ADTRAN CUSTOMER CARE:
From within the U.S. 1.888.423.8726
From outside the U.S. +1 256.963.8716
PRICING AND AVAILABILITY 1.800.827.0807
*61287844F1-13A*
SPECIFICATIONS
Specifications for the 621i ONT are as follows:
■Electrical
♦Input: 12 V DC, 0.5 A
♦Maximum Power Consumption: 6 W
♦Power Supply Adapter: 12 V DC Power Adapter (LPS)
●Input Voltage Rating: 100 - 240 V AC
●Output Voltage Rating: 12 V DC
●Output Current Rating: 0.5 A (minimum)
■Environmental
♦Operational Temperature Range: 0°C to +40°C
♦Storage Temperature Range: –40°C to +70°C
♦Relative Humidity: up to 95%, noncondensing
■Physical
♦Height: 1.7 in (4.3 cm)
♦Width: 6.1 in (15.5 cm)
♦Depth: 5.3 in (13.4 cm)
♦Weight: 0.75 lbs (338.6 g)
MAINTENANCE
The 621i ONT does not require routine hardware
maintenance for normal operation. ADTRAN does not
recommend that repairs be attempted in the field. Repair services
may be obtained by returning the defective unit to ADTRAN. Refer
to the warranty for further information. Field support for software is
provided through upgrade facilities.
SAFETY AND REGULATORY
Refer to the Safety and Regulatory Notice for this product (P/N:
61287844F1-17) for detailed safety and regulatory information.
Consultez l'avis sur la sécurité et la conformité à la réglementation
pour ce produit (61287844F1-17) pour obtenir des renseigne-
ments détaillés sur la sécurité et la réglementation.
Ausführliche Sicherheits- und regulatorische Informationen sind in
der Konformitätserklärung zur Sicherheit und Einhaltung von
Normen zu diesem Produkt (61287844F1-17) aufgeführt.
Documentation for ADTRAN Network Solutions products is available for
viewing and download directly from the ADTRAN Support Community
website.
Go to: https://supportforums.adtran.com/welcome
Registration is required.
ADTRAN offers training courses on our products, including customized
training and courses taught at our facilities or at customer sites.
For inquiries, go to: https://www.adtran.com/index.php/training
The following online documents and resources provide additional information for this product:
ADTRAN Pluggable Optics Compatibility Matrix (online tool, go to:
http://www.adtran.com/pluggableoptics)