2.0 INSTALLATION
After unpacking the unit, immediately inspect it for possible ship- ping damage. If damage is discovered, file a claim immediately with the carrier, then contact ADTRAN Customer and Product Service (CAPS) Department at the number listed in the back of the manual.
2.01Setting the Option Switches
Remove the Circuit Pack from the NT1 Standalone housing by re- moving the plastic front panel and sliding the Circuit Pack out of the front of the unit. Figure 2 illustrates switch option locations; Table 2 lists the function of each switch.
SW1
1 2 3 4 5 6
FRONT
Figure 2: NT1 Type 400 Switch Option Locations Table 2: NT1 Type 400 Switch Settings
Switch | Description | On | Off |
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6 | 50 ¾ termination | 50 ¾ | None |
5 | 50 ¾ termination | 50 ¾ | None |
4 | 100 ¾ termination | 100 ¾ | None |
3 | 100 ¾ termination | 100 ¾ | None |
2 | Long or short passive bus | Long | Short |
1 | Future use | N/A | N/A |
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Refer to Appendix B to determine what type of bus and termina- tion applies to your installation and to set the switches according- ly.
NT1 T400 User Manual | 3 |
