Enclosure and Intelligent Multiservice Gateways _________________ AT-EN646MOD Enclosure Installation Guide 613-000731 Rev A
Copyright © 2007 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. Microsoft and Internet Explorer are registered trademarks of Microsoft Corporation. Netscape Navigator is a registered trademark of Netscape Communications Corporation. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesis, Inc.
Contents Chapter 1: Preface ................................................................................................................................................................................. 5 Safety Symbols Used in this Document ................................................................................................................................................... 5 Where to Find Web-based Guides .....................................................................................
Contents 4
AT-EN646MOD Installation Guide Chapter 1 Preface This guide contains instructions on how to install the AT-EN646MOD enclosure. This guide is used when the AT-iMG646MOD series intelligent Multiservice Gateway is installed at an outside location. Safety Symbols Used in this Document This document uses the safety symbols defined in Table 1. Table 1. Safety Symbols Symbol Meaning Description Caution Performing or omitting a specific action may result in equipment damage or loss of data.
Preface web site: www.alliedtelesis.com. Returning Products Products for return or repair must first be assigned a return materials authorization (RMA) number. A product sent to Allied Telesis without an RMA number will be returned to the sender at the sender’s expense. To obtain an RMA number, contact Allied Telesis Technical Support through our web site: www.alliedtelesis.com. Sales or Corporate Information You can contact Allied Telesis for sales or corporate information through our web site: www.
AT-EN646MOD Installation Guide Chapter 2 Enclosure Overview Features The AT-EN646MOD enclosure houses and protects the AT-iMG646MOD series intelligent Multiservice Gateway and is designed to be mounted on the exterior of a house or building.
The AT-EN646MOD Interfaces to the Network The AT-EN646MOD allows the AT-iMG646MOD to be installed in an outdoor environment. Refer to Figure 2. network-physical-indoor.ai ethernet (up to 6 ports) RJ11 (up to 4 ports) Coax (up to 8 ports) splitter Figure 2.
Chapter 3 Enclosure Installation Tools Required Have the following tools on hand before you install the enclosure: 3/8” drill Drill bit for the size of wall anchor or fastener you intend to use for the enclosure Flat head and #2 Phillips screwdrivers SM fusion splicer and required fiber handling tools 3/8 in. nut driver 5/32 in.
AT-EN646MOD Installation Guide Check Package Contents The following items are included in the enclosure package. If any item is missing or damaged, contact your Allied Telesis representative for assistance. Note Store the packaging material in a safe location. You must use the original shipping material if you need to return the unit to Allied Telesis.
AT-EN646MOD Installation Guide Mount the Enclosure To mount the AT-EN646MOD enclosure, perform the following procedure: 1. Remove all components from the shipping package. 2. Choose an outdoor location (indoor mounting is also acceptable) for the enclosure that is close to the power source. The enclosure must be mounted within 50 cable feet of the power supply. 3.
AT-EN646MOD Installation Guide Install the Grounding Plate 1. Remove the grounding plate and the self-tapping screws from the accessory kit. 2. Review the grounding plate layout, as shown in Figure 5. Figure 5. Grounding Plate 3. Align the mounting holes in the grounding plate with the holes in the back of the enclosure, as shown in Figure 6 4. Use the two 14mm self-tapping screw to secure the grounding plate to the enclosure through the mounting hole in the grounding plate.
AT-EN646MOD Installation Guide Figure 6.
AT-EN646MOD Installation Guide Install the Fiber Clips onto the Grounding Plate 1. From the accessory kit, take out the 3 fiber clips 2. Attach these to the grounding plate so that they are in increasing height, as shown in Figure 7. Figure 7.
AT-EN646MOD Installation Guide Option 1 - Install the Dielectric Drop Cable Securing the Fiber Optic Drop Cable To install the fiber optic drop cable, perform the following procedure: 1. Locate the fiber optic drop cable and ground wire entrance on the enclosure, as shown in Figure 8. Fiber Optic Drop Cable and Ground Wire Enclosure Entrance Figure 8. Location of Fiber Optic Drop Cable and Ground Wire Entrance 2.
AT-EN646MOD Installation Guide Figure 9. Positioning the Cable 11. Tighten the Kepnuts on the strength member clamp to between 10 and 12 in-lbs to secure the strength members.
AT-EN646MOD Installation Guide 12. Replace the bar, washers, and Kepnuts on the posts of the drop cable clamp and tighten the Kepnuts to secure the cable, as shown in Figure 10, to between 10 and 12 in-lbs . Figure 10.
AT-EN646MOD Installation Guide Install the Ground Wire The AT-iMG646MOD must be connected to a good earth ground. Caution Install all electronics equipment as per state and local ordinances. To install the ground wire, perform the following procedure: 1. Prepare an adequate length of 14AWG stranded grounding wire for the ground connection. 2. Strip 0.25 in. of insulation from the ground wire and crimp it into a ground wire ring lug sized for a 10-32 post. 3. Remove the Kepnut from the ground wire post. 4.
AT-EN646MOD Installation Guide Secure the Entrance (Replace/Seal the Grommet and Install Tie-Down) 1. Take the grommet that you removed and cut a notch at the bottom so that the optical and ground wire can go through when the grommet is replaced. 2. Place the grommet back (with the notch at the bottom) and seal the grommet with tape (not provided) and silicone sealant (not provided). Refer to Figure 12. Caution The grommet must be sealed so that the unit can operate correctly in an outside environment. 3.
AT-EN646MOD Installation Guide Secure the Tracer Wire and Aramid Yarn Note Any tracer wire or cable armoring on the fiber optic drop cable must be connected to the grounding plate. Follow the procedure below to secure the drop cable tracer wire. To secure the drop cable tracer wire and aramid yarn, perform the following procedure: 1. Cut the tracer wire to 2.5 in. (7 cm) from the grommet. 2. Remove the nut on the tracer wire post. 3.
AT-EN646MOD Installation Guide Option 2 - Install the Armored Drop Cable To install the fiber optic drop cable, perform the following procedure: 1. Locate the fiber optic drop cable and ground wire entrance on the enclosure, as shown in Figure 14. Fiber Optic Drop Cable and Ground Wire Enclosure Entrance Figure 14. Location of Fiber Optic Drop Cable and Ground Wire Entrance 2. Route the fiber optic drop cable to the enclosure entrance and mark the entrance location on the cable. 3. Cut the cable 42 in.
AT-EN646MOD Installation Guide Note Make sure that the fiber optic cable is not secured by either clamp. 10. Position the cable so that the opened shielding goes under the strength member clamp and the closed portion of the cable is about 0.25 in. (0.7 cm) beyond the drop cable clamp posts as shown in Figure 16 Figure 16. Positioning the Cable 11. Tighten the Kepnuts on the strength member clamp to between 10 and 12 in-lbs to ground the shielding. 12.
AT-EN646MOD Installation Guide Install the Ground Wire The AT-iMG646MOD must be connected to a good earth ground. Caution Install all electronics equipment as per state and local ordinances. To install the ground wire, perform the following procedure: 1. Prepare an adequate length of 14AWG stranded grounding wire for the ground connection. 1. Strip 0.25 in. (0.7 cm) of insulation from the ground wire and crimp it into a ground wire ring lug sized for a 10-32 post. 2.
AT-EN646MOD Installation Guide Secure the Entrance (Replace/Seal the Grommet and Install Tie-Down) 1. Take the grommet that you removed and cut a notch at the bottom so that the drop and ground wire can go through when the grommet is replaced. 2. Place the grommet back (with the notch at the bottom) and seal the grommet with tape (not provided) and silicone sealant (not provided). Refer to Figure 19. Caution The grommet must be sealed so that the unit can operate correctly in an outside environment. 3.
AT-EN646MOD Installation Guide Splice the Drop Cable and Securing the Fusion Splice Tray 1. Locate the fusion splice tray (single-part plastic) and the fiber splice clip in the accessory kit. 2. Select the size of the fiber slice clip you are using (2mm for blue or 3 mm for black). 3. Trim off a 4-section piece and snap this into the splice tray, as shown in Figure 20. Figure 20. Inserting fiber splice clip 4.
AT-EN646MOD Installation Guide 8. Route the buffer tube from the drop cable to the upper left corner of the splice tray and secure the tube to the splice tray with the wire tie. 9. Just beyond the tie, strip the buffer tube away. Refer to Figure 21 . Figure 21. Securing the Buffer Tube 10. Route the fiber cable 2 times around the splice tray to the splice organizer and cut it to a length that will allow the splice to the pigtail be placed in the organizer, as shown in Figure 22. Figure 22.
AT-EN646MOD Installation Guide 12. Strip the SC/UPC pigtail jacket to expose 22.75 in. (58 cm) of fiber. 13. Clean the fiber, and splice it to the pigtail, per the splicer manufacturer’s instructions. 14. Route the pigtail once around the splice tray and out through the lower right corner, as shown in Figure 23. Figure 23. Securing the Pigtail The pigtail should extend 15.5 in. (40 cm) from the splice tray. 15. Trim the wire tie close to the cables. The completed splice tray should look like Figure 24.
AT-EN646MOD Installation Guide Figure 24. Splicing Tray - Complete Note The AT-iMG646MOD WAN module has a receive sensitivity of -3 dBm to -32 dBm at 1550 nm. After the fiber pigtail is installed and before you plug the pigtail into the chassis, please check the power of the optical input signal. The power at 1550 nm should fall within the receive sensitivity specification. If the power is too high, an optical attenuator is needed in the link.
AT-EN646MOD Installation Guide Secure the Optical Wire Note It is critical that you maintain a minimum fiber bend radius of 1 in. when you route the fiber optic cables and mount them to the enclosure with the self-adhesive wire clips. 1. Connect the optical fiber and pigtail to the back of the enclosure with adhesive clips, as shown in Figure 25. 2. Place the optical fiber over each fiber clip on the grounding plate, push it down into the clip, and twist to retain the fiber. 3.
Figure 26.
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AT-EN646MOD Installation Guide 613-000731 A 32 Chapter 3: Enclosure Installation
