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Total Access 372 Small Business Unit ONT Installation and Maintenance Guide
Maintenance
The SBU ONT does not require routine maintenance for normal operation. Do not attempt to
repair the SBU ONT in the field. Repair services are obtained by returning the defective unit to
ADTRAN. Refer to "Appendix A, Warranty and Customer Support" for further information.
Specifications
Specifications for the SBU ONT are detailed in Table 14.
Specification
42
Table 14. Specifications
Voltage Range:
Maximum Current:
Operating Temperature:
Storage Temperature:
Relative Humidity:
Dimensions:
Weight:
Electronics Module:
Standard SBU Housing:
Standard SBU OptiTap Housing:
Description
Power
12 VDC (nominal), 10.8 VDC to 14.4 VDC (tolerance)
2.0 Amp
Environmental
–40°C to +65°C (–40°F to 149°F) Outdoors
–40°C to +50°C (–40°F to 149°F) Indoors
–40°C to +85°C (–40°F to 185°F)
0 to 95% noncondensing within enclosure
Physical
Height: 15 inches (38.1 cm)
Width: 9.75 inches (24.8 cm)
Depth: 4 inches (10.1 cm)
15 pounds (6.8 kg)
Part Numbers
1
287722G1
1187774G1
1187775G1
61287722G1-5B
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Troubleshooting
