Installation

Installation Overview

This page provides guidance on installing the Tellabs ONT140C/140CL and any required accessories. The procedure involves the following steps:

1. Physically mount the ONT and accessories
2. Connect the ONT to DC power
3. Connect the optical fiber cable to the ONT
4. Secure and dress fibers and cabling
5. Verify the Installation

Note 1: The Tellabs ONTs are designed to operate in specific orientations and have the expectation of free airflow around the unit to ensure the ONT stays within the ONT’s design limits. ONTs should never be stacked or strapped together as this typically does not give sufficient air flow to maintain the unit within temperature specifications. Multi-ONT configurations should use the proper mounting brackets and/or DIN rail shelf to ensure proper installation. Failure to follow these practices may void your warranty and cause premature failure of the unit.

Note 2: If the upstream equipment (OLT) is not yet operational, it is impossible to complete the final step of the procedure at the time of installation. Nevertheless, the ONT is not considered to be fully installed until this step is completed.

Note 3: When the ONT is first connected to the PON, it must download and install software. This process can take up to 20 minutes to complete. If multiple ONTs need to be installed at the site, the next physical install can proceed.

Physical Mount

The ONT140C/140CL provides many flexible installation options. It can be installed on or under desktops or other indoor surfaces, wall-mounted or integrated into office furniture. The plenum rated ONT140C can be mounted in plenum spaces or rack mounted in communication closets. The following are the physical mounting procedures for typical installations.

Desktop

The ONT140C/140CL can simply be placed on top of a desk, table, shelf, or other flat surface. This allows the user to adjust its position, have easy access to the connectors on the back, and see the LED indicators on the top as the ONT operates. The ONT140C/140CL has four stabilizing rubber feet on the bottom of the unit to prevent it from slipping on a hard surface.

Cubicle Raceway

The ONT140C/140CL can be integrated into cubicle walls or other furniture by installing it into the built-in raceways designed for this purpose. This type of installation provides easy access to the ONT, while hiding network equipment within the office décor. Once the ONT is installed, the ethernet cables can be slipped though the access panels built into modular office furniture. Connectivity and power are hidden using the same strategy.

Wall Mounting Bracket

The ONT140C/140CL can be attached to a wall or other indoor surface using an optional Wall Mounting Bracket. Before mounting the ONT, consider the location and orientation appropriate for access and ease of use. Consider the power cable, optical fiber and ethernet cables that will be attached to the ONT. Also, consider the visibility of the LED Indicators on the top of the unit.

Install the Wall Mounting Bracket

The optional wall mounting bracket for the ONT140C/140CL is shown below:

Use the following procedure to install the wall mounting bracket:

1. Identify a suitable location for the ONT140C/140CL.
2. Prior to mounting the bracket, insert 2 screws (included with the bracket) into the center studs of the wall mounting bracket, leaving a 0.12-inch gap between the bottom of the screw head and the top of the stud, as shown below. Setting this gap is required to ensure proper engagement with the keyhole mounts on the bottom of the ONT140C/140CL.

3. Place the Wall Mounting Bracket on the mounting surface and position it to hold the ONT in the desired orientation.
4. Mark the mounting surface for the two surface mount holes in the bottom of the bracket.
5. Carefully drill holes in the marked locations appropriate for the fasteners to be used.
6. Install drywall or masonry anchors if they are needed.
7. Hold the bracket in position and secure it with screws.

Attach the ONT140C/140CL to the Wall Mounting Bracket

1. Wrap any excess fiber inside the bracket, as shown in the illustration.

2. Ensure that the fiber will not be pinched or crimped when attaching the ONT to the wall mounting bracket, maintaining a 3-inch bend radius.
3. Position the ONT so the 2 mounting screws in the center studs of the bracket align with the keyholes on the base of the ONT.
4. Press the ONT onto the bracket to engage the keyholes and compress the bracket spring clips as shown below.

5. Slide the ONT away from the bracket spring clips until they pop up and lock the ONT into place.

Plenum Bracket

Note: The ONT140CL is not Plenum rated.

The ONT140C is plenum rated and can be mounted in spaces handling environmental air using a plenum bracket. The plenum bracket is used to protect the ONT and provide compliance with heat and smoke standards, according to local building practices. The plenum bracket for the ONT140C is an optional accessory that must be purchased separately. Use the following procedures to mount the ONT using a plenum bracket:

Mount the ONT140C inside the Plenum Bracket

1. Place the labeled plenum bracket on its side (face up) so that the two screws are visible on the fixture bracket inside the plenum bracket.
2. Align the 2 keyholes on the bottom of the ONT140C over the 2 center mounting studs on the fixture bracket, as illustrated, and slide the ONT down and forward.

Install the Plenum Bracket on a Wall

1. Locate a suitable position, within reach of a wall outlet, to install the plenum bracket.
2. Drill two level holes, to accommodate the 2 - 1/4-inch screws, into the wall, as shown in the example.

Note: If installing the plenum bracket in sheetrock, a wall anchor should be used.

3. Insert the 2 - 1/4-inch screws into the drilled holes and tighten the screws through the holes in the bracket and into the wall, as illustrated below:

Note: If using wall anchors, drill pilot holes into the sheetrock, matching the diameter of the anchor. Insert the anchor into the sheetrock and secure the plenum bracket with the bolt/screw supplied with the anchor.

Install the Plenum Bracket on a Railing

1. If installing the plenum bracket on a cable raceway railing or similar structure, use the plenum bracket lip and set screw to install the plenum bracket.

   Note: The ONT140C can be mounted on a railing up to 1/2" wide.

2. Ensure the railing is clear of any surrounding equipment.
3. If the railing is mounted to a ceiling, ensure the plenum bracket is close enough to a power source.
4. Tighten the set screw over the metal rail, as shown below:

Connecting to Power

The Tellabs ONT140C/140CL is DC-powered. This power can be sourced locally from an optional AC power adapter or remotely from a bulk 54-volt DC power supply.

Local AC Adapter

The ONT140C/140CL can be powered using the optional AC adapter plugged into an AC outlet near the ONT installation site. The AC adapter provides ~54 VDC to the ONT.

Note: The AC adapter must be purchased from Tellabs®. Contact your sales representative for further details.

Use the following procedure to connect the AC adapter to the ONT140C/140CL:

1. Unravel the line cord and DC output cable of the AC adapter.
2. Plug the DC 8-pin Molex connector from the AC adapter into the power connector on the ONT140C/140CL.
3. Plug one end of the line cord into the AC adapter and the other end into a nearby AC outlet.

Remote Bulk DC Power Supply

Remote DC power is delivered to the ONT140C/140CL through the RJ-45 connector located on the rear face of the ONT. The DC power may be transported over an ethernet cable (CAT5 or later) or optical/copper composite cable. The following procedure describes powering the ONT140C/140CL from a remote bulk DC power supply. This includes validating that the implementation (RJ-45 connector pinouts, polarities, wire gauges, distances, etc.) adheres to the specifications detailed in the Power Requirements section of this document.

Do not plug the RJ-45 connector into the ONT until instructed.

1. At the ONT use a DMM to ensure that DC power (~ 54 VDC) is being delivered on the correct pairs of the RJ-45 connector, and that the polarity is correct.
2. If an issue is found, shut off power to the DC cable at the remote power supply, make any needed adjustments and restore power.
3. Once the remote powering specifications have been verified,  plug the connector from the remote DC power cable into the RJ-45 DC power connector located on the rear face of the ONT140C/140CL.

The ONT Power LED Indicator will begin to blink green and turn steady green once the ONT is connected to the PON. (See the LED Behavior Table in the Description page of this document.)

Connecting Optical Fiber

The optical fiber connector is located on the left side of the ONT when viewed from the rear. A removable cover protects the connector and prevents laser light from exiting the ONT into the room.

Danger! Invisible Laser Radiation: Optical Fibers emit invisible laser radiation. Avoid direct exposure to the beam. Never look into the end of a Fiber or into a Fiber connector on a cable or a device. Permanent eye damage or blindness can occur quickly from laser radiation.

1. Locate the fiber port on the rear of the ONT.
2. Remove the protective dust cover from the ONT optical bulkhead.
3. Clean and scope the ONT bulkhead and fiber cable connector per local practices.
4. Use a light meter to ensure that the light level coming from the OLT is within tolerance (-8 dBm < > -28 dBm at 1490 nm).
5. Orient the fiber cable connector so that the molded raised key is aligned with the keyway in the ONT bulkhead.
6. Slide the fiber cable connector into the ONT bulkhead until a click is felt and heard.

Warning: When removing the optical fiber cable from the ONT bulkhead, grasp the connector body, not the strain relief or cable.

Cable Management

At a minimum, the optical fiber cable and DC power cable will be connected to an ONT. There will be more cables depending on the devices subtending from the ONT. It is important that all cables are dressed neatly and routed such that they are out of the way and cannot be easily damaged. It is a good idea to bundle cables using ties. Reusable cable ties (Velcro) allow additional cables to be added to the bundle, or unused cables to be removed from the bundle easily.

It is especially important to manage and protect slack optical fiber cables. If the ONT140C/140CL has been installed using the wall mounting bracket, use the fiber management system integrated into the bracket to manage and protect this slack. This system provides bend radius protection, strain relief, and protects against accidental fiber damage.

Any remaining, excess optical fiber can be loosely coiled and placed in a secure location. The optical fiber cable can perform poorly or be damaged if it is bent sharply or crushed. A coil of at least 6 inches in diameter is recommended to protect against fiber damage. Use electrical tape or Velcro cable ties to hold the coiled fiber together in several places. Nylon zip ties can be used if care is taken to not crush the cable and to remove sharp points after cutting off excess cable tie length.

Warning: Do not bend the fiber optic cable to a diameter smaller than 7.5cm/3 inches. Doing so may damage the fiber or prevent the signal from passing through properly.

Verifying the Installation

Once the installation, software download, and bootup are complete, use the following procedure to verify ONT status:

Note: During boot up, the XGS-PON LED will flash red and may progress to solid red for approximately 10 seconds before flashing green while downloading software. Do not cycle power or change the ONT if flashing green. Check with a systems administrator for software download status before proceeding.

1. Verify that the PON LED is Solid Green, indicating that the ONT is up and active on the network.
   1. If the PON LED is Solid Green, no further installation work is necessary.
   2. If the PON LED is not Solid Green, contact the systems administrator for activation assistance. Have the following information available:
      • Vendor: Tellabs
      • ONT Model Number: 140C or 140CL
      • ONT Serial Number: Located on a sticker on the bottom of the ONT

Services are provisioned and turned up remotely via the Panorama PON EMS. Services may have been provisioned in advance. If they were not, it may be necessary to contact the systems administrator to complete service activation.