Installation

This chapter provides location selection guidance and procedures, tool and supplies lists, and installation procedures for the Tellabs ONT180C and related Tellabs accessories.

Installing an ONT180C includes:

1. Unpacking the ONT and related accessories and checking for shipping damage
2. Physically placing the ONT and related accessories at the install location, and mounting it to a wall or other surface if required
3. Connecting the ONT to DC power
4. Connecting the optical fiber cable to the ONT
5. Verifying a solid green PON LED Indicator on the ONT after it boots up

If multiple ONTs are to be installed, the next ONT Install can proceed while the previously installed ONT downloads new firmware.

If the upstream equipment (OLT) is not yet in operation when the ONT is physically installed, it is not possible to place the ONT into operation.

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 a 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.

Application

The Tellabs ONT180C is for indoor use, only, in temperatures ranging from 32° F to 104° F (0° C to 40° C) and relative humidity ranging from 5% to 85%.

Location Selection and Planning

The location of the ONT must take into account the space, power, and cabling requirements of the ONT and attached devices.

The fiber cable drop should be installed so that it is near the location selected for installing the ONT. Because fiber cables are typically not altered in the field, ensure that the cable is an appropriate length. A limited amount of fiber slack can be placed into the fiber slack storage located in the mounting bracket.

Desktop vs. Wall Mount

The Tellabs ONT180C can sit on a desk, table, shelf, or similar surface. This installation 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 bracket may also be useful even if located on the desktop as some cabling may be stiff enough or heavy enough to pull it off of the desktop.

The Tellabs ONT180C can also be mounted to a wall, the back or underside of a desk or shelf, in any orientation, using screws. This can keep the unit and cables out of sight and out of the way.

Wall Mounting Bracket

An optional Wall Mounting Bracket, available from Tellabs, is recommended when mounting the ONT180C on a wall (or any other surface).

Using the bracket makes mounting the ONT faster and easier. The ONT180C snaps onto the bracket. This enables removal and reinstallation of the ONT during maintenance and upgrades. Additionally, it supports a space for mounting fiber slack.

The bracket is shipped with a paper template to help with drilling mounting holes in the proper locations.

Alternatively, Tellabs also has an optional interface bracket that allows users with existing ONT implementations to mount the bracket to existing fiber management brackets.

ONT180C Rack Mounting

The ONT180C can be rack mounted using an OEM DIN Rail Mount and a Universal ONT DIN Rail Mounting Bracket.

OEM DIN Rail Mount

A Recommended OEM DIN Rail Mount is from the Panduit Catalog.

Universal ONT DIN Rail Mounting Bracket

The Universal ONT DIN Rail Mounting Bracket provides strain relief features for the optical fiber and ethernet cables. Three fiber channels located near the fiber connection ports, provide strain relief and bend radius protection for the optical fiber cable, while additional strain relief is provided by zip tie holes down the length of the bracket. The ONT180C mounting bracket procedure is located in: Install Guides> Mechanical Assemblies> Universal ONT DIN Rail Mounting Bracket.

Powering the ONT180C

The ONT180C requires a 54 VDC power input which can be supplied by any of the options described in the Site Preparation section.

AC Adapter Location

• 150W ~ Must be within about eight feet of the intended installation location

To use remote power, a DC cable from the ONT to the remote bulk DC power supply is required. The DC cable is typically routed alongside the fiber cable back to the place where the optical splitter or Optical Line Terminal (OLT) and bulk DC power supply are located.

Composite cables are also available that have both the optical fiber and the DC power wiring inside a single jacket. Because a composite cable contains an optical fiber that is typically neither lengthened nor shortened in the field, they are generally available in a number of standard lengths with optical connectors preinstalled.

A composite cable that is somewhat longer than the actual shortest route distance from the ONT180C to the optical splitter should be obtained. Excess cable length can be loosely coiled in a location that will keep it safe from damage.

Tools and Supplies

Tools

The following list of tools should cover most typical ONT180C installations:

• Screwdrivers or driver bits
  • Small slot screwdriver (1/8 inch) for attaching DC power wiring to a DC power connector pigtail (for installations using remote bulk DC power or the alternate AC adapter)
  • Screwdrivers or driver bits to fit the wood or machine screws, dry wall anchor screws, or masonry anchor screws that will be used in mounting the ONT to a wall or other surface.
  • Medium slot screwdriver
• Wire cutter/stripper (for installations using remote bulk DC power or the alternate AC adapter)
• Power drill and drill bits sized appropriately for screw pilot holes, and drywall and masonry anchor holes (sizes required will depend on fastener selection)
• Digital multimeter with test leads (a DMM with only basic functions will do) to test power for DC remote power installations.

Supplies

The following list of supplies should cover most typical ONT180C installations (supplies are locally sourced):

• Fasteners
  • Select screws, drywall anchors, and masonry anchors of the appropriate size for the light weight of the ONT and optional Wall Mounting Bracket (< 2 pounds). Make sure that the heads are large enough, so they do not pull through the mounting holes of the bracket.
• DC power connectors
• Extra Phoenix-type pluggable terminal connectors (5.08 mm pitch 2P) to fit the ONT DC 54V power connector (one connector is packed with the ONT)
• Molex connectors (8-pin) to fit the ONT UPS connector
• Cable ties (Nylon and Velcro) and vinyl electrical tape
• Sharpie or another fine-point permanent marker

Unpacking and Checking the ONT180C

The Tellabs ONT180C and related accessories to be installed may arrive in a single shipping box, or in multiple boxes. When unpacking the boxes, check each item against the installation work order for proper quantities and for shipping damage.

• If a shortage or damage is found, contact the Tellabs Technical Assistance Center (TAC) immediately.
• If all items are accounted for and in good condition, installation can proceed.

Installing the ONT180C

Installing the Tellabs ONT180C consists of the following steps.

1. The physical installation:
   • Placing the ONT180C on a desktop or other surface
   • Mounting the ONT180C to a wall, the back or underside of a desk, or some other surface
2. Connecting the ONT180C to DC power:
   • AC adapter at the installation location
   • Remote bulk DC power supply cable
3. Connecting the optical fiber cable to the ONT180C
4. Verifying a solid green PON LED Indicator on the ONT

Desktop Installation

The ONT180C can simply be placed on top of a desk, a table, a shelf, or any similar object. An optional Wall Mounting Bracket can be used to store excess fiber cable length under the ONT as it sits on a desk or other surface.

Mounted to a Wall

The ONT180C can be attached to a wall, a desk or table, or to some other surface using the optional Wall Mounting Bracket and screws.

Note: Make sure that the owner of the building or the owner of the individual unit or furniture is aware that holes will be drilled and screws and/or wall anchors will be used to mount the ONT to a wall or to furniture before beginning installation.

Before mounting the ONT180C, decide on the best orientation for access and ease of use. Up to 11 cables may be attached to the rear edge of the ONT. Also orienting it such that the user can see the LED Indicators on the top of the unit is helpful for troubleshooting.

Installing the Mounting Bracket

1. Place the Wall Mounting Bracket on the surface it will be attached to. Position the bracket so that is will hold the ONT in the desired orientation. The long edge of the bracket that has the entrance and exit holes for the optical fiber cable should be at the back of the ONT (near the connectors).
2. Select at least two holes in the bottom of the bracket and mark the mounting surface.
3. Carefully drill holes in the marked locations appropriate for the fasteners that will be used.
4. Install drywall or masonry anchors in their holes if they are used.
5. Hold the bracket in position and secure with screws through the selected holes.

Storing Excess Optical Fiber Cable Length Inside the Bracket

If the optical fiber cable is a little long, the excess can be wound around guides molded inside the Wall Mounting Bracket before the ONT is attached. This prevents cable bend radii that are less than optimum. Several feet of cable can be stored inside the bracket.

It is very important that the correct entrance and exit holes in the bracket are used.

1. Mark the optical fiber cable about 10 inches from the end of the connector with a Sharpie or other permanent marker, or a piece of electrical tape.
2. Position the mark on the cable just outside bracket and push the cable into the strain-relief fingers inside the cable exit hole. The fingers will hold the cable in place while it is wound on the guides.
3. Continue winding the cable around the guides and under the clips until most of the excess cable length is used up.
4. Route the cable out the entry hole in the bracket on the last turn.
   
   Use a short piece of electrical tape to hold the cable in place just inside the entry hole.

Attaching the ONT to the Wall Mounting Bracket

There are four hooks that stick up, out of the Wall Mounting Bracket. These hooks match rectangular holes in the bottom of the ONT case.

Removing the ONT from the Wall Mounting Bracket

It may be helpful to disengage the ONT from the Wall Mounting Bracket for better access to the connectors.

Powering the ONT

The ONT can be powered by either the Phoenix style connector using bare wire connections, or via the AMP modular connector.  The AC power supply will utilize the AMP modular connector.

If using a DC input, this will typically be installed with the Phoenix style connector.  The Phoenix-type pluggable terminal connector (5.08 mm pitch 2P) is available. This procedure is for a connector with screws.

Do not plug the connector block into the ONT yet.

1. In the bulk, the DC power supply turn off or disconnect the DC power for the cable connecting to the location where the ONT is being installed. Note which wire (color/stripe/etc.) is positive.
2. Return to the ONT installation location and use a DMM to make sure that there is no voltage on the wires of the remote bulk DC cable before proceeding further.
3. Strip about 3/16 inch of insulation from the ends of the DC wires and twist the strands of each wire tightly.
4. Install the Phoenix-type pluggable terminal connector on the end of the remote bulk DC cable taking care to ensure the screws are tightened properly. The polarity marked on the ONT rear panel above the DC 54V power connector must be observed. Note that if the connector has reversed polarity, the ONT will not be damaged when powered up. It just will not operate.
5. Go to where the bulk DC power supply is located and restore power to the DC cable.
6. Return to the ONT installation location and use a DMM to make sure that DC power (~ 54 VDC) is available at the Phoenix power connector and the polarity is correct. If polarity is reversed, shut off power to the DC cable, reverse the cable connections at the connector, and restore power.
7. Plug the Phoenix DC power connector into the ONT DC 54V connector.

If the remote DC bulk power supply is on, the ONT Power LED Indicator will come on in about five seconds and be steady green. (See the ONT180C LED Indicator Quick Reference Table in the Operation chapter.)

Connecting the Optical Fiber Cable to the ONT

The optical fiber connector is located on right side of the ONT when viewed from the rear. A removable cover protects the connector and prevents any inadvertent exposure to the laser when no cable is installed.

DANGER! 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. Remove power from the ONT.
2. Turn the ONT upside down with the edge having all the connectors facing away.
   1. Press on the ONT optical fiber cable connector cover with a thumb and push the cover away from you in the direction of the arrow until it slides off the ONT case (Figure 1).
       

      Figure 1 - Cover Removal

      

3. Remove the protective dust cover from the ONT optical connector that was exposed when the cover was removed (if present).
4. Clean the optical cable connector and then orient cable connector so that the raised key molded onto one side of the cable connector matches the keyway in the ONT connector (Figure 2). It is important that the fiber is cleaned on every intallation of the fiber.

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

    

Figure 2 - Cable Orientation

5. Slide the cable connector into the ONT connector until a click is felt and heard.
6. Position the ONT optical fiber cable connector cover near the cover of the ONT case with the optical fiber cable in the slot in the cover.
7. Slide the cover back onto the ONT case until it clicks into place.

Cable Routing and Management

Dress all cables connected to the ONT neatly and route them such that they are out of the way and cannot easily be stepped on or tripped over.  

Try to bundle cables that are going to the same place using cable ties. Reusable Velcro ties allow additional cables to be added to the bundle, or unused cables to be removed from the bundle easily.

An optical fiber cable can perform poorly or be damaged if the minimum bend radius of the cable is exceeded. Any coil of fiber must be at least 6 inches in diameter to ensure that the minimum bend radius is met. Ensure any Nylon zip ties do not crush the cable.

Verifying a Solid Green PON LED Indicator on the ONT

After the optical fiber cable is connected to the ONT and power is applied, it will try to communicate with the upstream Optical Line Terminal (OLT) over the optical fiber cable when DC power is applied. If it is successful and the ONT is already activated at the Panorama PON EMS, the PON Indicator will be solid green.

If a downstream optical signal is not seen, the PON Indicator LED will be solid red. This may indicate that the PON port is disabled, failed, or a bad cable between the OLT and ONT. If the ONT detects an optical signal but is not accepted on the PON, it will blink green with a 1/2-second cadence. If the OLT is downloading the ONT, which it will often do when first attached to the system, it will blink green slowly at a 1-second cadence to indicate the download is in progress. If the ONT is blinking quickly, then contact the System Administrator to have the ONT activated. It may be necessary to provide or verify the PON serial number.

Once the PON is activated, the PON Indicator will be solid green.