20 Issue 1, December 2003 61223424L2-5A
Table 10. HDSL4 T200 H4TU-R Specifications
Specification Description
Loop Interface
Modulation Type
Mode
Number of Pairs
Line Rate
Baud Rate
Loop Loss
Bridged Taps
Performance
H4TU-C Transmit Power (Data) Level
H4TU-C Transmit Power (Activation) Level
Input Impedance
Maximum Loop Resistance
Return Loss
16 TC PAM
Full Duplex, partially overlapped echo canceling
2
1.552 Mbps
261.333 k baud
Refer to the HDSL4 Deployment Guidelines section.
Single Taps < 2000 ft., Total Taps < 2500 ft.
Compliant with T1.418-2000 (HDSL4 Standard, issue 2)
14.1 ±0.5 dBm (0 to 400 kHz)
14.1 ±0.5 dBm (0 to 307 kHz)
135 ohms
1150 ohms (nonrepeatered circuit)
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 H4TU-C (P/N 1223401L2) and H4R (P/N 1223445L1)
H4TU-R Power Dissipation
Local Power
Fusing
3.8 watts
–48 VDC ± 24 VDC
1.00 A (not field-replaceable)
Clock
Clock Sources
Internal Clock Accuracy
DSX-1 Derived (with HDSL4 frame bit stuffing)
±25 ppm (Exceeds Stratum 4), meets T1.101 Timing
Requirements
Tests
Diagnostics Self-Test, Local Loopback (H4TU-C), Remote Loopback
(H4TU-R)
Physical
T200 Office Repeater Shelf-Mounted
Dimensions
Weight
5.5 in. High, x 0.7 in. Wide, x 6.0 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 T1.418-2001, Issue 2; ANSI T1.102 (DS1 Interface)
Part Number
T200 H4TU-R 1223424L2
