Product specifications

32 Issue 1, November 2003 61181113L2-5A
Table 8. HDSL2 Total Access 3000 H2TU-C Specifications
Specification Description
Loop Interface
Modulation Type
Mode
Number of Pairs
Line Rate
Baud Rate
Loop Loss
Bridged Taps
Performance
H2TU-C Transmit Power (Data) Level
H2TU-C Transmit Power (Activation) Level
Input Impedance
Maximum Loop Resistance
Return Loss
16 TC PAM
Full Duplex, partially overlapped echo canceling
21
1.552 Mbps
517.333 k baud
Refer to the
HDSL2 Deployment Guidelines section for
additional measurements.
Single Taps < 2000 ft., Total Taps < 2500 ft.
Compliant with T1.418-2002 (HDSL Standard, issue 2)
16.6 ±0.5 dBm (0 to 450 kHz)
16.3 ±0.5 dBm (0 to 350 kHz)
135 ohms
900 ohms
12 dB (50 kHz to 200 kHz)
Network Interface
DS1 Transmit Level
DSX-1 Line Buildout
DSX-1 Line Code
0 dB (default), –7.5 dB, –15 dB
0-133 ft. ABAM (default)
133-266 ft. ABAM
266-399 ft. ABAM
399-533 ft. ABAM
533-655 ft. ABAM
B8ZS (default), AMI
Power
Tested with the ADTRAN H2TU-C (P/N 1223026L2)
H2TU-C Total Power
H2TU-R Power Dissipation
Span Power
Fusing
–48 VDC @ 260 mA with H2TU-R
6.6 watts with H2TU-R
–190 VDC (from H2TU-C) Class A2 Compliant, GFI Current Limited
at <5 mA, Loop Current Limited at between 150 to 160 mA
1.00 A (not field-replaceable)
Clock
Clock Sources
Internal Clock Accuracy
DSX-1 Derived (with HDSL2 frame bit stuffing) MUX fed
±25 ppm (Exceeds Stratum 4), meets T1.101 Timing Requirements
Tes t s
Diagnostics Self-Test, Local Loopback (H2TU-C), Remote Loopback (H2TU-R)
Physical
Total Access 3000 H2TU-C, Shelf-Mounted
Dimensions
Weight
6 in. High, x 0.7 in. Wide, x 10 in. Deep
< 1 lb.
Environment
Operating Temperature (Standard)
Storage Temperature
–40°C to + 70°C
–40°C to + 85°C
Compliance
UL 60950; GR-1089-CORE; GR-63-CORE; ANSI T1.418-2002, Issue 2; ANSI T1.102 (DS1 Interface)
Part Number
Total Access 3000 H2TU-C 1181113L2