ADC HiGain H2TU-C-231 List 3E Quick Installation

T H2TU-C-231 L 3E
HE IST
The H2TU-C-231 List 3E line unit is the Central Office (CO) side of a T1 transmission
system. When the H2TU-C is used in conjunction with a HiGain High-bit-rate Digital
Subscriber Line 2 (HDSL2) remote unit (H2TU-R), the system provides 1.552 Mbps
transmission on one unconditioned copper pair over the full Carrier Service Area (CSA)
range. The CSA includes loops up to 12,000 feet of 24 AWG or 9,000 feet of 26 AWG
wire, including bridged taps.
F
EATURES
• Front-panel status LED, craft port, and
four-character status display
• Ultra-low wander
• Grounded loop detection
• Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option
• Digital Data Service (DDS) latching loopback
option
• Sources sealing current
• Supports the inband 100 loopdown and
100000 loopup commands when the
SmartJack Loopback (LPBK) option is enabled
S
PECIFICATIONS
Operating Temperature -40 °F to +149 °F (-40 °C to +65 °C)
Operating Humidity 5% to 95% non-condensing
HDSL2 Span Voltage 0, -185 Vdc
Mounting 220 mechanics, high-density shelf
1.552 Mbps Overlapped Pulse Amplitude Modulation Transmission
HDSL2 Line Rate
with Interlocking Spectra (OPTIS)
+16.8 dBm ±0.5 dB, 135 Ω (0-450 kHz) at CO side
HDSL2 Output
+16.5 dBm ±0.5 dB, 135 Ω (0-350 kHz) at remote side
35 dB at 196 KHz, 135 Ω
Maximum Loop Attenuation
DSX-1 Line Rate 1.544 Mbps ±200 bps
Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution
DSX-1 Line Format
(B8ZS)
DSX-1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
pk-pk
DSX-1 Pulse Output 6 V , pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
• Payload (PL) or HiGain (HG) loopback source
identification
• Bit Error Rate (BER) alarm option
• Bipolar Violation Transparency (BPVT) option
• Report menu option for downloading status and
performance monitoring data to a file
• Maintenance screens for inventory, provisioning,
troubleshooting, and performance monitoring
• Performance Report Messaging (SPRM and NPRM)
• HDSL2 span connection to Loop 2 on pins 26 and
27
I
NSTALLATION
To ensure proper installation of the H2TU-C-231, align the H2TU-C with the
enclosure slot guides and slide the unit in. When the unit is properly seated, the
retaining latch snaps closed.
P -U S
OWER P EQUENCE
When the H2TU-C powers up, the four-character display illuminates and reports
status messages.
If the H2TU-C is unable to communicate with the H2TU-R, it displays various alarm
and status messages.
If the H2TU-C is able to communicate with the H2TU-R, the following occurs:
1 The Status LED flashes red while acquiring the H2TU-R and turns a steady green
when the entire system is operating with no alarms. (The DS1 signal must be
present.)
The four-character display reports margin (SNR) readings (should be ≥ 6 dB) and
2
loop attenuation (should be <35 dB @196 KHz).
3 After the system powers up, alarm conditions that exist are reported on the
display. (The H2TU-C reports alarms if no DS1 signal is applied.)
P
ROVISIONING
After installing the H2TU-C, perform these basic provisioning tasks by accessing the
HiGain HDSL2 logon screen. Refer to the onscreen Help menu for navigational aids.
1 Connect a maintenance terminal to the craft port (see front-panel illustration
CTRL R
inside), then press + to refresh the log on screen, if necessary.
2 Select the Config menu, Date and Time, then type the date and time.
3 Select the Inventory menu, then type in the unit ID numbers.
4 Change the settings of any system parameters, if necessary, by selecting the
Config menu, Standard Options or ADC Options. (Configuration options can
also be set from the front panel using the MODE and SEL buttons. See the
"Front-Panel Configuration Options Using MODE and SEL"
5 Once the H2TU-C is successfully installed and provisioned, access the
Performance or Event Log menu to clear the Performance, Alarm History, or
Event Log screens, or use Master Clear in the Config menu.
table inside.)
Þ
Continued