ADTRAN T400 19 دليل المستخدم

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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 ...................

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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/

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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

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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