Maintenance; Specifications; Table 12. Specifications - ADTRAN H2TU-C Installation And Maintenance Practice

Litespan H2TU-C Installation and Maintenance Practice

MAINTENANCE

The HDSL2 Litespan H2TU-C does not require routine maintenance for normal operation. Do
not attempt repairs in the field. Return defective units to ADTRAN to obtain repair services.
Refer to the "Appendix E, Warranty"

SPECIFICATIONS

Table 12 details the specifications for the Litespan H2TU-C.
Specification
H2TU-C Transmit Power (Data) Level:
H2TU-C Transmit Power (Activation) Level:
16
for further information.

Table 12. Specifications

Loop Interface
Modulation Type:
Mode:
Number of Pairs:
Line Rate:
Baud Rate:
Service Range:
Loop Loss:
Bridged Taps:
Performance:
Input Impedance:
Maximum Loop Resistance:
Return Loss:
Power Consumption:
Span Power:
Fusing:
Clock Sources:
Internal Clock Accuracy:
16 TCPAM
Full duplex,
partial overlapped,
echo canceling
One
1.544 Mbps
517.333 kbaud
Defined by CSA guidelines
35 dB maximum @ 196 kHz
Single Taps < 2 kft, total taps less than 2.5 kft.
Compliant with T1.418-2000 (draft)
16.6 dBm ± 0.5 dBm (0 kHz to 450 kHz)
16.3 dBm ± 0.5 dBm (0 kHz to 350 kHz)
135 Ω
900 Ω per span
12 dB (50 kHz to 200 kHz)
Power
48 VDC. 7.2 watts (includes H2TU-C and
H2TU-R)
–190 VDC internally generated from the –48 VDC
switch battery
–48 VDC (switch battery) is current-limited by a
500 mA Slo-Blo ® subminiature surface-mount
fuse.
Clock
Internal, DSX-1 derived
±25 ppm, (exceeds Stratum 4). Meets T1.101
timing requirements
Description
61221002L1-5F