Section 61150.087L1-5 C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE Issue 1, August 1996 OR DECREASE IN RELIABILITY. PRACTICES CLEI Code # DDMOJHD1 _ _ HANDLING PRECAUTIONS REQUIRED. T400 SINGLE ENVIRONMENTAL HOUSING INSTALLATION/MAINTENANCE CONTENTS 1. GENERAL............................................................... 1 2. INSTALLATION ...................................................... 1 3. REPLACEMENT PARTS ....................................... 4 4. MAINTENANCE ..................................................... 4 5. WARRANTY AND CUSTOMER SERVICE ........... 4 FIGURES Figure 1. T400 Single Environmental Housing ............ 1 Figure 2. Clearances .................................................... 2 Figure 3. Mounting Holes ............................................. 2 Figure 4. Wiring Terminals ........................................... 2 Figure 5. T400 Environmental Housing Assembly....... 3 Figure 6. Surge Arrestors and the Insertion/Extraction Tool ............................... 3 TABLES Table A. Wiring ............................................................. 3 1. GENERAL This practice provides installation and maintenance information for the ADTRAN T400 Single Environmental Housing, part number 1150087L1. Figure 1 is a view of the T400 Single Environmental Housing. Features Figure 1. T400 Single Environmental Housing The basic features of the T400 Single Environmental Housing, part number 1150087L1, include the 2. INSTALLATION following: The T400 Environmental Housing consists of a base, • Houses one of the following circuit packs: FNID, cover, O-ring, mounting bolts for the base, mounting BRIDLE-R, HTU-R, HRE, or Total Reach bracket, lag screws and spacers for the mounting • Seals the T400 circuit packs from the environment bracket. See Figures 2, 3, 4 and 5. • Allows separate, unsealed access to the customer The T400 Single Environmental and network wiring Housing is designed for above ground only mounting. Never install • Mounts above ground to a pole or wall telephone wiring during a lightning • Compact T400 Environmental Housing - 9" High x storm. 3/4 5/8 3 " Deep x 8 " Wide, 2.6 lb. with mounting bracket Install Mounting Bracket • Four replaceable gas-tube surge arrestors that 1. Clearances between the T400 Environmental provide primary lighting protection Housing and adjacent structures must be observed 61150.087L1-5A Section 61150087L1-5, Issue 1 1 WARNING! COVER TO BE REMOVED BY TELEPHONE COMPANY PERSONNEL ONLY CUSTOMER ACCESS NETWORK INTERFACE DEVICE for access during maintenance. Note clearances required for removing the Environmental Housing. See Figure 2 for mounting clearances. 2. Place the mounting bracket 3/4" spacers between the rear of the mounting bracket and the mounting surface. The spacers are required to insure the mounting bracket is not warped during installation or use. 1/2 3. Insert the 1/4" x 1 " Hex head lag screws through Mounting Holes the mounting holes of the mounting bracket and spacers. Tighten securely with a 7/16" nut driver. 3/8 5 " 9.0" 3/4" 3/16 4 " Figure 3. Mounting Holes 3. Connect the ground cable to an appropriate 8.5" ground. (Surge arrestors work only when the ground cable is connected.) 4. Replace the network cover on the base using a 7 /16" nut driver. Tighten to 20 in-lbs. 1.0" 1.0" Customer Wiring 1. Remove the customer cover on the base using a flat-head screwdriver. 6.0" 2. Connect the wiring in the terminal blocks as shown in Table A. The terminal block will accommodate a #6 Spade Lug. The terminal blocks are shown Figure 2. Clearances in Figure 4. Install the T400 Environmental Housing 3. Replace the customer cover on the base using a 1. Fasten the Environmental Housing to the mounting flat-head screwdriver. bracket using the two mounting bracket bolts. 7 2. Tighten the two bolts using a / " nut driver to 16 25 in-lbs. Power Modules in the central office should be 5 15 49 55 NC 7 13 41 47 11 removed or de-energized prior to installation and maintenance of the T400 Single Environmental Housing. Appropriate Methods and Procedures should be followed to insure WARNING! CUSTOMER ACCESS COVER TO BE REMOVED BY TELEPHONE personal safety. COMPANY PERSONNEL NETWORK INTERFACE DEVICE ONLY Network Wiring Figure 4. Wiring Terminals 1. Remove the network cover on the base using a 7 Remove the Environmental Housing Cover /16" nut driver. 2. Connect the wiring in the terminal blocks as shown 1. Wipe any debris from the cover and base. in Table A. The terminal block will accommodate 7 2. Remove the two housing cover bolts using a / " a #6 Spade Lug. 16 nut driver. 2 Section 61150087L1-5, Issue 1 61150.087L1-5A Table A. Wiring Pins ISDN BRIDLE-R ISDN TR-R HDSL HRE HDSL HTU-R HDSL FNID 5, 15 Customer NC Customer Loop 1 To Customer To Customer 7,13 Network Loop 1 NC Network Loop 1 Network Loop 1 Network 11 GND GND GND GND GND 41, 47 Network Loop 2 Network Network Loop 2 Network Loop 2 NC 49,55 NC Customer NT1 Customer Loop 2 From Customer From Customer 2. Place the cover on the base. 3. Remove the cover from the housing base. 7 3. Tighten the two bolts using a / " nut driver to 20 16 Handle the circuit packs only by the front in-lbs. panel handle. Take care to avoid the sharp exposed pins on the front and back sides of To Replace Surge Arrestors the circuit packs during installation and 1. Unseat the appropriate powering modules (located maintenance. in the central office) before replacing surge Insert the circuit pack (aligning the goldfingers on the arrestors inside the T400 single environmental circuit pack with the connector inside the environmental housing. This removes power from the wires and housing) in the wired slot. pins. Place the Cover on the Base 2. After cleaning debris from the cover and base, remove the environmental housing cover. 1. Verify that the cover assembly O-ring is properly placed around the cover and is free of debris 3. Remove the circuit pack. before replacing the cover. 4. Using the insertion/extraction tool, grasp and remove a surge arrestor (see Figure 6). Rptr. Case Cover O-ring Rptr. Base Figure 6. Surge Arrestors and the Insertion/ WARNING! Mounting Case Bolts CUSTOMER ACCESS COVER TO BE REMOVED BY TELEPHONE Extraction Tool COMPANY PERSONNEL ONLY NETWORK INTERFACE DEVICE 5. Place a replacement surge arrestor in the same position. Bracket Mounting Bolts 6. Replace the remaining surge arrestors in the same manner. Figure 5. T400 Environmental Housing 7. Reseat the powering modules at the central office. Assembly 61150.087L1-5A Section 61150087L1-5, Issue 1 3 5. WARRANTY AND CUSTOMER SERVICE 8. Perform a circuit test to verify proper circuit operation. ADTRAN will replace or repair this product within ten years from the date of shipment, if the product does not 9. Replace the cover assembly O-ring if it has not meet its published specifications or if it fails while in been replaced within the last 90 days. service. For detailed warranty, repair, and return 10. Reattach the cover on the base. information, refer to the ADTRAN Equipment Warranty and Return Policy and Procedure. Return Material Authorization (RMA) is required prior 3. REPLACEMENT PARTS to returning equipment to ADTRAN. ADTRAN does The environmental housing contains surge arrestors not recommend that repairs be performed in the field. and an O-ring which can be ordered for replacement For service, RMA requests, or further information, as follows: contact one of the following numbers: Part number: 1150083L1 4 surge arrestors and the ADTRAN Customer Service: insertion/extraction tool Applications Engineering (800) 615-1176 Part number: 3273.010 O ring (pre-sales support and inquiries) Technical Support (800) 726-8663 4. MAINTENANCE (post-sales; have unit serial number available) Sales (800) 827-0807 The T400 Single Environmental Housing requires no RMA (Repair Service) (205) 971-8722 routine maintenance to function properly. Repair and Return Address: Electrical shock can occur if surge ADTRAN, Inc. arrestor replacement is attempted Customer Service Department before removing the powering 901 Explorer Boulevard modules. Huntsville, Alabama 35806-2807 In cases where lightning is the suspected cause of circuit pack failure, ADTRAN recommends replacing all surge arrestors within the environmental housing. The surge arrestors are field replaceable as detailed in section 2. The cover assembly O-ring should be replaced if entry is gained and the O-ring has been in place for 90 days or longer. 4 Section 61150087L1-5, Issue 1 61150.087L1-5A