Power Considerations
Prior to beginning the installation, ensure that the following power-related items are considered:- Verify that proper ground connections are available for correct terminal operation.
- Verify that the power outlet connector type matches the power cable end ordered with the OLT.
- Verify that any UPS systems being used are installed and operating correctly.
- If power redundancy is being used, ensure both feed circuits are operational.
- 48VDC Powering: Verify that suitably rated branch circuit breakers and/or fuse positions are available in a locally installed DC Rectifier shelf when using 48VDC power. Breakers and fuses must be rated 15 Amps and be suitable for branch protection.
Power Availability
When the equipment is being installed, ensure that there is an available 100/240 VAC outlet within six feet of the unit. If the OLT is to operate in redundant supply mode, two 100/240 VAC outlets, on different feed circuits, should be within six feet of the unit.
Facility Grounding
Ensure that the facility grounding system is installed in accordance with EIA/TIA-607 Grounding and Bonding Requirements for Telecommunications in Commercial Buildings, United States Department of Agriculture Rural Utilities Service (RUS) Bulletin 1751F-810, and/or local practices, as applicable.
It is important that the shelf has a solid ground for both safety and signal integrity of the system. Ensure that the shelf is properly grounded per the standards cited above and the installation guidance given in this document.
Racks and Cable Management
The OLT6/OLT1134 is designed to be mounted in a 19-inch equipment rack or in a 23 inch equipment rack if the optional 23 inch rack mounting kit was procured. It is recommended that sufficient overhead cable trays and rack-mounted cable management are also installed to accommodate both fiber and metallic cabling.
- Verify the rack that the chassis is to be installed in is properly installed and grounded.
- Verify that overhead cable trays have been installed for the new equipment.
- Verify that rack-mounted cable management has been installed for the new equipment. For horizontal cable management installed in the rack, it is recommended that cable management is installed directly above and below the OLT6 to allow the PON cables and the uplink cables to be trained separately.
- It is recommended that vertical cable management is installed in the rack to provide support for the PON and uplink cables.
Required Equipment
Ensure that all components required to install and turn-up the OLT are available. Depending on the options chosen, the following is a checklist of components that should be available:
- OLT6/OLT1134 Chassis
- OFA1 Fan Tray
- 1st AC-DC Rectifier module
- 2nd AC-DC Rectifier module if configured with a 2nd rectifier
- Power cords with the appropriate connector
- 23" Rack mounting kit if required
- Rack screws/clips
- ESU32 Switching Unit
- OIU8 PON card(s)
- Uplink SFPs and XFPs per the configuration
- PON XFPs per the configuration
Tools Required
Installation of the OLT6/OLT1134 will require the following tools:
- Laptop Computer: A laptop computer is required for turnup of the OLT-mini and proper configuration of the uplink interfaces.
- Serial Cable: Initial turnup of the 1134 or OLT6 shelf will require a serial cable to set the IP address and initial uplink settings.
Note: You will need a terminal program to access the serial interface of the OLT if you use the μUSB interface. Teraterm and putty are good open source options. Teraterm is used for the examples in this document. - SFP or XFP Uplink Modules: Information is given below for supported uplink XFP 10G and SFP 1G lasers compatible with the system.
Note: You will need an SSHv2 terminal program if using SSHv2 to access the CLI for ongoing maintenance of the system. Teraterm and putty are good open source options. - Power Wiring: If using the 48VDC powering option, you will need power wiring to wire between the shelf and rectifier.
- PON Lasers: Ensure you have purchased the appropriate Tellabs supported PON Optical Modules shown in the "OLT Laser Part Numbers" table shown below.
OLT Part Numbers
| OLT6 AC Part Numbers | Description | Quantity Required |
|---|---|---|
| 81.11S-OLT6 | OLT6 AC Shelf | 1 |
| 81.11P-1134ACPW-R6 | OLT6 AC Power supply module | 1 or 2(redundant) |
| 81.11W-PC-C13-B-R6 | Three-prong AC power cord. | 1 or 2(redundant) |
| Power and Digital Ground Cable Assembly | 1 | |
| 81.4115094FS | OFA1 Fan Assembly | 1 |
Laser Part Numbers
Laser modules for the PONs and Uplinks must be purchased separately. The OLT-mini comes equipped with no laser modules.
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Both PON lasers in the OLT-mini must be of the same type, i.e. both GPON, or both XGS-PON. |
| OLT Laser Part Number | Laser Description | Distance | Connector | Comments |
|---|---|---|---|---|
| 128211 | 850nm 1G SX SFP | 550m MMF | 2xLC | Short Range 1G Laser |
| 4195098 | XFP, TDM, 10Gbps, 1310nm, industrial temp 5/3.3/1.8V; | 10 Km | 2xLC | XFP 10km Laser |
| 81.11T-S1GB40KM-R6 | 1310 1G LR SFP | 40km SMF | 2xLC | Long Range 1G Laser |
| C.11T-S1GBELX1131S | 1310 1G LR SFP | 10km SMF | 2xLC | Long Range 1G Wideband Laser |
| C11T-S1GBER450030 | Copper1G SFP | 100m | RJ45 | Copper 1G SFP |
| C.11T-XO192SR1851M | XFP: 10G, SX, 850NM, MM | 100m | 2xLC | 10G Multimode XFP |
| C.11T-XO192IR21550 | 10GBASE-ER/OC-192 IR-2 Multi-rate 40km Industrial Temp XFP | 40km | 2xLC | 10G 40km XFP |
| 81.11T-XFPGPON-IT | Tellabs GPON Laser | 20km | 1xSC UPC(blue) | 2.5/1.25G Bidi GPON Laser |
| 81.11T-XFPXGSPON | Tellabs XGS-PON Laser | 20km | 1xSC UPC(blue) | 10G/10G Bidi XGS-PON Laser |
Power Requirements
The 1134/OLT6 has the following AC power requirements when powered by AC:
| AC Power Specifications | Value | Comments |
|---|---|---|
| AC Input Voltage | 100-240VAC | |
| AC Input Line Frequency | 50-60Hz (nominal) | |
| AC Current Rating | 5A@100VAC, 2.5A@240VAC |
|
| Max AC Input Power | 600 W |
The 1134/OLT6 has the following DC power requirements when powered by DC:
| DC Power Specifications | Value | Comment |
|---|---|---|
| DC Input Voltage | -42.5 to -56VDC | |
| DC Current Rating | 14A @ 42.5VDC | |
| DC Power | 600W |
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Note: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. |
The following table lists the power draw per installed card type.
| Tellabs OLT6 Power Consumption | ||||
Name |
Qty |
Unit Power (Watts) |
Ext Power (Watts) |
|
| Uplink Card (ESU32 - 6x1GE) | 2 | 30 | 60 | 205 |
| PON Cards (max 4 per chassis) | 4 | 90.3 | 361.2 | 1,233 |
| Fan nominal (1 per chassis) | 0 | 80 | 0 | - |
| Fan high (power from backplane) | 0 | 171 | 0 | - |
| Total Watts | Total BTU/hour | |||
| Power Nominal | 421 | 1,438 | ||
| Power High | 421 | 1,438 | ||
| Breaker Information | 2x15A for Shelf Includes Power |
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Note: The 1134/OLT6 shelf does not have a power on/off switch as it is not intended to power down the shelf while it is in service. All cards and the fan module are ‘hot inserted’ i.e. can be replaced with the power on. This is part of the redundancy design and ensures continued service while replacing cards or the fan module. |
Installation Considerations
When selecting the installation rack and its location, the following items should be considered as part of that selection:
- Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the Tellabs® 1134/OLT6 in an environment compatible with the maximum operating temperature specified "Specifications".
- Reduced Air Flow - Installation of the Tellabs® 1134/OLT6 in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. Ensure that air inlet and outlet are not blocked which could lead to overheating of the shelf.
- Mechanical Loading - Mounting of the Tellabs® 1134/OLT6 in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading.
- Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of the Tellabs® 1134/OLT6 nameplate ratings should be used when addressing this concern.
- Redundant Power Inputs - It is an important consideration to ensure separate AC or DC power inputs on different circuits for maximum survivability and redundancy. This ensures that failure of a single circuit or tripping of the circuit breaker does not take down the system.
- Reliable Earthing - Reliable earthing when rack-mounting the Tellabs® 1134/OLT6 should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips).
Figure 1: 19-in Tellabs® 1134/OLT6 Optical Line Terminal
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Note: Shelf extensions are required if the Tellabs® OLT6 shelf is to be installed in a 23-inch rack and must be ordered separately |