Features; Specifications - ADC HIGAIN H4TU-C-231 LIST 5A Quick Installation

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The H4TU-C-231 List 5A line unit is the Central Office (CO) side of a T1
transmission system. The H4TU-C, when used with an H4TU-R remote unit, transmits
a 1.544 Mbps payload a maximum distance of 12 kft. over two unconditioned copper
pairs. The H4TU-C supports three powered spans to further expand reach.
The H4TU-C-231 List 5A is designed to mount in 220 mechanics shelves.
F
EATURES
Front-panel features: craft port for maintenance
screen access, seven LEDs for system status
reporting, and DSX-1 access jacks
HDSL4 transmission features:
• Doubler (H4D) support for up to three spans
• Grounded loop and loop reversal detection
• Sources sealing current when connected to
locally powered H4TU-R-402 remote unit
• Digital Data Service (DDS) latching loopbacks
• Fractional T1 maintenance
S
PECIFICATIONS
Operating Temperature
Operating Humidity
HDSL4 Span Voltage
CO Supply
Mounting
HDSL4 Line Rate
HDSL4 Output
Maximum Insertion Loss
Maximum Loop Attenuation Span 1 = 31 dB; Span 2 and Span 3 = 29 dB
DSX-1 Line Rate
DSX-1 Line Format
DSX-1 Frame Format
DSX-1 Pulse Output
DSX-1 Input Level
5A
IST
Maintenance screens: for inventory,
provisioning, performance monitoring, and
troubleshooting, including:
• Remote provisioning
• Loop attenuation and insertion loss reporting
• Power Back Off feature configures HDSL4
• Report menu for downloads of status and
-40°F to +149°F (-40°C to +65°C)
5% to 95% non-condensing
0, -185 Vdc (Voltage is applied across Loop 1 and Loop 2.)
-48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)
220 mechanics shelves
784 kbps Overlapped Pulse Amplitude Modulation (OPAM)
transmission per pair
+14.1 dBm ±0.5 dBm, 135Ω
Span 1 = 47 dB at 196 kHz
Span 2 and Span 3 = 43 dB at 196 kHz
1.544 Mbps ±200 bps
Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
pk-pk
6 V , pre-equalized for 0 to 655 feet of ABAM cable
+1.5 dB to -7.5 dB DSX
transmit power levels to reduce crosstalk
performance data