Instruction manual

Total Access 850 System Manual Section 2 Engineering Guidelines
64203376L1-1B © 2004 ADTRAN, Inc. 25
1. EQUIPMENT DIMENSIONS
The Total Access 850 chassis is 8.5” W, 11” D, and 3.5” H and can be mounted in a 19-inch or 23-inch
rack (mounting brackets included in shipment). All other equipment (modules) fit inside the base unit.
2. POWER REQUIREMENTS
Regardless of the configuration of access modules installed in the chassis, the following power
requirements apply:
AC System
90/130 VAC, 60 Hz, 50 Watt Max
DC System
40/56 VDC, 50 Watt Max
3. REVIEWING THE FRONT PANEL DESIGN
Figure 1 shows the Total Access 850 front panel. Refer to Access Module Interfaces on page 40 for a
discussion of available modules and the front panel functions of each.
Figure 1. Total Access 850 Front Panel Layout
UL 60950/NEBS requires all Total Access 850 empty slots to be covered with blank panels
(P/N 1175099L1).