ADTRAN T200 H2TU-R, Руководство по установке и обслуживанию

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19 61222026L1-5, Issue 1 61222026L1-5A
Loop Interface
Modulation Type ...................................... 16-TC PAM
Mode ......................................................... Full Duplex, Partially Overlapped, Echo Canceling
Number of Pairs ....................................... One
Bit Rate ..................................................... 1.552 mbps
Baud Rate ................................................. 517.333 k baud
Service Range .......................................... Defined by Carrier Service Area Guidelines
Loop Loss ................................................. 35 dB maximum @ 196 kHz
Bridged Taps ............................................ Single Taps < 2 kFt, Total Taps < 2.5 kFt
Performance ............................................. Compliant with T1.418-2000 (HDSL2 Standard)
H2TU-C Tx Pwr (Data) Level ................. 16.8 + 0.5 dBm (0 to 450 kHz)
H2TU-C Tx Pwr (Activation) Level ....... 16.6 + 0.5 dBm (0 to 450 kHz)
Input Impedance ....................................... 135
Ω
Maximum Loop Resistance ..................... 900
Ω
per span
Return Loss .............................................. 12 dB (50 kHz to 200 kHz)
Customer Interface
DS1 (T1.403-compatible) ........................ (ITU-T I.431 compliant)
DS1 Signal Output Level ......................... 0, -7.5 or -15 dB
DS1 Input Signal Level ........................... 0 to -22.5 dB
DS1 Line Coding ..................................... AMI, B8ZS
DS1 Framing Format ............................... SF, ESF, Unframed, Auto, FFFC (Forced Frame Format Conversion)
Power
Span-powered by H2TU-C or local-powered by a nominal -48 Vdc source.
Maximum Heat Dissipation ..................... 3.0 W (Local Power Mode)
Maximum Heat Dissipation ..................... 3.0 W (Span Power Mode)
Clock Sources
Clock Sources .......................................... Internal, HDSL2 Loop Derived
Internal Clock Accuracy ..........................
±
25 ppm, (exceeds Stratum 4). Meets T1.101 timing requirements.
Tests
Diagnostics ............................................... Loopback (H2TU-R), initiated with HDSL2 in-band codes, initiated with T1 NIU
in-band codes, initiated with H2TU-C command, initiated manually, H2TU-R control
port. Self-Test.
Physical
Dimensions ............................................... 5.5 in. High, 0.7 in. Wide, 6.0 in. Deep
Weight ...................................................... < 1 pound
Environment
Temperature ............................................. Operating (Standard): -40
°
C to +70
°
C; Storage: -40
°
C to +85
°
C
Relative Humidity .................................... Up to 95% noncondensing
Compliance
UL Listed
Bellcore NEBS Level 3 (SR-3580)
FCC 47CFR Part 15, Class A
Part Number
H2TU-R T200 Circuit Pack ..................... 1222026L1
Table 9. ADTRAN T200 Low Voltage H2TU-R Specifications