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6. MAINTENANCE
The Total Access 2W/4W SHDSL LTU requires no
routine maintenance for normal operation.
ADTRAN does not recommend that repairs be
attempted in the field. Repair services may be obtained
by returning the defective unit to ADTRAN. Refer to
the
Warranty and Customer Service
information.
Total Access 2W/4W SHDSL LTU Unit
61182118L1-5B
section for further
Table 8. 2W/4W SHDSL LTU Specifications
Network Interface
SHDSL Line Rate
SHDSL Service Range
G.703 Service Data Rate
Line Code
Timing Source
Impedance
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
Maximum Current Draw
Maximum Heat Dissipation
Power
Span Power
Physical
Dimensions
Weight
Compliance
SHDSL
G.703 Ports
Environmental
Part Number
Issue 2, July 2004
7. SPECIFICATIONS
Specifications for the Total Access 2W/4W SHDSL
LTU are detailed in
Table
SHDSL per ITU G991.2:
2-wire mode = 192 kbps to 2.048 Mbps
4-wire mode = 400 kbps to 2.064 Mbps
Refer to ITU 991.2, Annex B, Performance Requirements
64 kbps to 1.984 Mbps
TC PAM
Internal clock (internal oscillator with >32 ppm tolerance,
OR G.703 RX clock (B.703 port-derived receive clock)
120 ohms balanced
0°C to +55°C
–20°C to +65°C
95 percent maximum noncondensing
0.025 A maximum
1.21 watts @ –48VDC
120 VDC, current limited, not more than 150 mA output
152.4 mm H x 15.9 mm W x 254 mm D
< 1 lb.
ITU-T G.991.2
ITU-T G.703
ETS 300 019-2-3
1182118L1
8.
13
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