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Фрагмент инструкции
ADTRAN NT1 ACE .....................................1 Figure 2. Interface Connectors ...................................... 1 Figure 3. Switch Locations............................................4 Figure 4. Power Supply Connection .............................7 Figure 5. Short Passive Bus Configuration ...................9 Figure 6. Extended Passive Bus Configuration...........10 Tables Table 1. Status Indicators.............................................2 Table 2. Network Connector Pin Assignments ............ 5 Table 3. Local Bus Connector Pin Assignments ......... 6 xvi NT1 ACE User Manual 61203019L1-1 NT1 ACE User Manual Unit Overview The ADTRAN NT1 ACE provides a basic rate interface between customer ISDN terminal equipment (TE) and the ISDN network (U). Figure 1 is an illustration of the NT1 ACE. A X Aduwi □ - READY ACE □ — ERROR □ _ POWER V y Figure 1. ADTRAN NT1 ACE Two jacks are provided on the rear panel of the unit for this purpose, as illustrated in Figure 2. I (imp (tllll) (tllll) © I S/T S/T LOCAL NETWORK U POWER Figure 2. Interface Connectors A single RJ-49C connector labeled NETWORK U connects to the network. Two additional data jacks labeled S/T connect to the local bus. 61203019L1-1 NT1 ACE User Manual 1 NT 1 ACE User Manual The U-interface complies with ANSI T1.601 and ITU-TI.430 Recommendation Standard. The S/T-interface complies with ANSI T1.605 and ETSIETS 300012 Standard. The ADTRAN NT1 ACE is a stand-alone unit. An external power source must be provided for the NT1 ACE. External power is supplied by the ADTRAN Power Supply, part number 336048VUR-2. The two S/T bus connectors on the rear of the unit enable the NT1 ACE to supply power to the TE. LED Indicators Table 1 describes the status of the LEDs located on the front panel of the NT1 ACE. Table 1. Status Indicators LED Color Description READY Green S/T- and U-interfaces ready to place call ERROR Red S/T- or U-interface not ready POWER Green Unit has power If the ERROR indicator is illuminated, check the flash rate of the READY indicator to determine the source of the error. A faster 8 Hz flash rate indicates a network problem. A slower 1 Hz rate indicates an S/T interface problem. 2 NT1 ACE User Manual 6120301 9L1-1 NT1 ACE User Manual If the ERROR indicator is not illuminated and the READY indicator is flashing, a network test is in progress. Network command tests cause a faster 8 Hz flash rate. Terminal equipment commanded tests produce a slower 1 Hz flash rate. Passive Bus Description The Local Bus interface may be used to connect up to eight TEs to the NT1 ACE. This arrangement is referred to as a Passive Bus. See the section Short Passive Bus Configuration on page 9 for detailed information. Inspection After unpacking the unit, immediately inspect it for possible shipping damage. If damage is discovered, file a claim immediately with the carrier; then contact ADTRAN Customer Service. If possible, keep the original shipping container for use in shipping the NT1 ACE for repair or for verification of damage during shipment. • Never install telephone wiring during a lightning storm. • Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. • Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. • Use caution when installing or modifying telephone lines. 61 203019L1-1 NT1 ACE User Manual 3 NT1 ACE User Manual Maintenance The ADTRAN NT1 ACE requires no routine maintenance to operate. In case of equipment malfunction, refer to the sections Remote Testing and Repair and Return or remove the unit and replace it with another unit optioned in an identical manner. Remote Testing Network test features include a loopback test initiated at the central office. This test confirms network integrity to the NT1 ACE. Repair and Return Repairs should not be performed in the field. Repair services can be obtained by returning the unit to the ADTRAN Customer and Product Service (CAPS) Department at the address listed on the inside back cover of this manual. Setting the Option Switches Two option switches located on the side of the unit configure the Local Bus of the NT1 ACE, as shown in Figure 3. 4 NT1 ACE User Manual 6120301 9L1-1 NT1 ACE User Manual The switch labeled TERMINATION sets the Local Bus termination. The options available are NONE, 50, and 100. See Powering TEs from the NT1 ACE on page 6 for more information concerning Local Bus configurations. The switch labeled CONFIGURATION has two possible options. When set in the LONG position, the Local Bus is configured for Extended Passive Bus. When set in the SHORT position, the Local Bus is configured for Short Passive Bus. Configuration and switch settings are discussed in Short Passive Bus Configuration on page 9 and in Extended Passive Bus Configuration on page 10. The Power Supp...
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