Installation

Overview

The following steps should be followed for hardware installation of the BOLT OLT:

• Mount the OLT
• Install Power Wiring and Grounding
• Install Optical Modules
• Power up the OLT

Mounting the BOLT OLT 

1. The OLT chassis requires 1 rack unit of space (1.75").  Install the 19" mounting ears and insert the chassis into the desired position in the rack until the mounting brackets are flush against the mounting rails.
2. Secure the shelf with four rack screws. Insert the two upper mounting screws first but do not tighten. Insert the two remaining screws into the bottom mounting holes and tighten as required. Tighten the two upper mounting screws to ensure the shelf is secure.  

Power Wiring and Grounding

1. Chassis ground connections are:
   1. For AC-powered systems, the primary ground is on the third prong of the AC power cord(s) for the shelf.  It is recommended that the two AC power cords be routed to separate circuit breakers to ensure fully redundant AC power inputs that cannot be affected by tripping of a single breaker.
   2. For both AC and DC systems, there is a green and yellow supplemental chassis ground wire on the left side of the chassis that must be connected. This wire should be connected to a good earth ground connection to ensure proper safety in the event of a short and to give the shelf good immunity to interference from RF noise sources.  Typically, this is done by deburring the paint from the rack using a grinding tool, then connecting the ground wire to the bay frame using a standard rack screw.  Not removing the paint on the rack connection will typically give a poor ground connection.  The rack is typically grounded, giving the system a good path to earth. The ground wire should never be connected directly to any power supply ground or return lead as this can introduce noise into the system.
      
      
      
       
2. For AC-powered systems, install the power module and cord. 

   Note: A redundant power module and cord may also be installed.

3. For DC-powered systems, install 16 or 18 gauge (solid or stranded with bootlace ferrules) power wires into the 4-position Phoenix type connector marked "NEG 48-57 VDC INPUT" on the front of the BOLT unit. The primary power pair to "A", "RTN" and "NEG" and the optional redundant power pair to "B" RTN and NEG.  Each BOLT should have a separate connection to the bulk DC power.  DC Powered units should not be daisy-chained. The Phoenix connector can be accessed by removing the two screws on the safety cover plate.
   
    
    
4. For AC-powered systems, install the power module and cord.  When using power supply sharing, a 715W power module supports one to three OLTs and an 1100W power module supports one to four downstream OLTs. For powering OLTs 1-4 from the primary powering OLT, install 16 or 18 gauge (solid or stranded with bootlace ferrules) power wires into the 8-position Phoenix-type connector marked "NEG 48-57 VDC OUTPUT" on the front of the BOLT unit. Each OLT (OLT1, OLT2, OLT3, and OLT4) will be powered by an "RTN" and "NEG" pair marked on the front of the BOLT unit. 
   
      

Optical Module Installation

The optical modules are installed on the front of the BOLT unit. Use only the approved optical modules shown in the site preparation section. There are 16 PON positions on the front left side. There are four SFP+ positions for the 10GE modules, four QSFP+ positions for the 40GE modules, and two QSFP28 positions for the 100GE modules.

Powering up the BOLT OLT

Once the power wiring and optical module installation are completed, they apply power to the OLT. The OLT will begin displaying LED indications to provide information on the health of the unit. The device is silkscreened on the front to indicate the position of each link and its associated LEDs.

LED Behavior

The LED Behavior can be found in the Description Section by the following link: LED Behavior