Transcript
3 Splice Module Housing (MB-SMH-216) Installation Instructions
July 1999 34-7047-2551-3
Figure 1 — MB-SMH-216 Shelf
General This document describes the installation of the MB-SMH216 connector shelf. Description The shelf is an LGX™ compatible product designed to be mixed with existing LGX components already in place. The unit (fully compatible with Lucent’s LSS1U-216/5) will hold up to 18 lightguide ribbon splices in an array splice connector enclosure stand (Figure 1). Note: Read and understand this procedure (as well as the instructions provided with related assemblies) before beginning an installation. Tools and Equipment In addition to the usual complement of installation tools, you will need a 5/32 inch (4 mm) hex wrench and 7/16 inch (11 mm) wrench to install the 12A2 clamp.
Precautions DANGER: Fiber ends and unmated connectors may emit invisible laser or LED radiation. Avoid direct eye exposure to the beam. Do not inspect with magnifying instruments. Protective dust caps should be kept on all unmated couplings and connectors. NOTICE: Fiber optic cable is sensitive to excessive pulling, bending and crushing forces. Consult the cable specification sheet for the cable you are installing. DO NOT BEND CABLE MORE SHARPLY THAN THE MINIMUM RECOMMENDED BEND RADIUS. DO NOT APPLY MORE PULLING FORCE TO THE CABLE THAN SPECIFIED. DO NOT CRUSH THE CABLE OR ALLOW IT TO KINK. Doing so may cause damage that can alter the transmission characteristics of the cable. The cable may have to be replaced.
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Shelf Preparation Before installing the shelf, remove it from its carton and make sure you have all the parts required for your installation (Figure 2). Make sure you understand the plans for your installation and know if express ports will be required, how the unit will be installed on the utility rack, and on which corner of the unit the cable will be strainrelieved. If your installation requires that express ports on the top or bottom of the unit be open to route fiber optic cable, remove the plugs from those ports now. Once the shelf is mounted between other cabinets, there may not be enough space to remove those plugs. Attach mounting brackets to the shelf or wall as illustrated in Figure 3. Use 10-32X1/2 inch screws supplied in the bracket hardware kit.
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5
23 inch Frame Mounting on Back of Uprights
23 inch Frame Mounting on Front of Uprights
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5
19 inch Frame Mounting
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5
1
23 inch Frame Mounting on Front of Uprights
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Mounting to Wall Figure 3 — Mounting Brackets
Express Ports (top and bottom) Connector Enclosures
Splice Module Housing
Fiber Routing Rings
C S A M P BL CO ODLIC E NN UL E E C S A M PL BLE CO OD IC NN UL E E C SP AB M L CO ODLIC E NN UL E E
C S A M P BL CO ODLIC E NN UL E E
Connector Enclosure Label
Mounting Bracket Kit
Clamp Kit
Figure 2 — MB-SMH-216 Components
Clamp Bracket
Mounting Screws and Fiber Routing Rings
Before the cable clamp bracket is installed on the unit, the bottom half of the 12A2 clamp is attached to it. To accomplish this, press the clamp-half tab into the locator hole in the bracket, insert the nut and bolt as shown in Figure 4, and tighten the screw with a 5/32 inch (4 mm) hex key.
Figure 4 — 12A2 Cable Clamp-Half Installation
Attach the cable clamp bracket (with bottom half of 12A2 cable clamp attached) as illustrated in Figure 5. Use 1032X1/2 inch screws and 10-32 inch nuts supplied with the shelf.
Cable Strain-Relief • Cable Installation Route the cable to the 12A2 cable clamp that will hold it. Press one of the plastic V-groove inserts, if required, onto the bottom cable clamp-half. Press the other V-groove insert onto the top cable clamp-half and position it over the cable as shown in Figure 6. Secure the clamp with the flat washer and nut provided. Tighten the nut with a 7/16 inch (11 mm) wrench or equivalent. Do not overtighten.
Figure 6 — Cable Clamp Installation
• Cable Preparation The MB-SMH-216 is designed for use with Lucent AccuRibbon™ cable. For AccuRibbon, use sheath termination hardware kits and connectorization arrays supplied by Lucent. Approximate strip lengths are shown in Figure 7. Outer Sheath Outer Sheath
Connector Array Connector Array Ribbons Ribbons
cm (35 (35 in) 8989cm in) Figure 7 — AccuRibbon Strip Lengths
Smaller interbuilding cables can be routed through slots in the sides of the shelf and strain-relieved with cable ties on a cable clamp bracket (Figure 8). Figure 5 — Cable Clamp Bracket Installation
Shelf Mounting Use 12-24X1/2 inch screws to attach the shelf to a utility rack (Figure 3). The unit is wall-mounted using anchors or screws you supply. Locate holes for anchors by holding the unit against the wall and marking through the mounting brackets with a pencil. If the unit will be mounted on a sheetrock wall, install plywood or other suitable support first. Before securing the unit to the wall, make sure the back door is installed and latched.
Figure 8 — Small Cable Strain Relieved
Splicing The shelf is equipped with an array splice connector enclosure that will hold up to eighteen splices. Remove the enclosure platform (Figure 9) by pulling up on the nylon rivets and lifting the platform out of the unit. Snap the fiber rings into the platform as shown.
Remove the array splice connector enclosure cover and set aside. Route the fiber ribbons to the connector enclosure. Splice the arrays and place them in the enclosure. As you splice, record ribbon information on the record label (Figure 10).
Platform Mounting Holes
Platform Mounting Rivets (four)
Fiber Rings
Connector Enclosure Platform
Connector Enclosure
Figure 9 — Connector Enclosure Platform
CABLE SPLICE MODULE CONN CABLE SPLICE MODULE CONN CABLE SPLICE MODULE CONN
Figure 10 — Record Label
Connector Enclosure Cover Mounting Screws (four)
Once all splicing is complete, replace the connector enclosure cover and secure it with four screws. Snap the connector enclosure platform back inside the shelf and press the nylon rivets to secure it to the bottom of the housing. Route ribbon slack through fiber rings as shown in Figure 11. Replace the outer doors and secure them with the nylon quarter-turn fasteners. Fiber Routing Rings
Ribbon Stack
Connector Enclosure Figure 11 — Ribbon Slack Routing
1.0 inch
3.5 inches
7.5 inches 15.0 inches
3.5 inches 1.0 inch
5.0 inches
17.0 inches
11.0 inches
Figure 12 — Shelf Dimensions
* LGX® is a trademark of Lucent Technologies.
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© 3M 1999 34-7047-2551-3
