ADC HiGain H2TU-C-388 Quick Installation Manual

H2TU-C-388 L 3E
IST
The H2TU-C-388 List 3E is the Central Office (CO) side of a T1 Transmission
system. When an H2TU-C is used in conjunction with a HiGain High-bit-rate Digital
Subscriber Unit 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
• Bit Error Rate (BER) alarm option
• Grounded loop detection
• Ultra-low wander
• Loss of Signal (LOS)/Alarm Indication Signal
(AIS) payload alarm option
• Maintenance screens for inventory,
provisioning, troubleshooting, and
performance monitoring
• Digital Data Service (DDS) latching loopback
option
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 Double Dual Module Plus (DDM+) high-density
1.552 Mbps Overlapped Pulse Amplitude Modulation
HDSL2 Line Rate
Transmission 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
DSX-1 Line Format
Substitution (B8ZS)
Extended SuperFrame (ESF), SuperFrame (SF), or
DSX-1 Frame Format
Unframed (UNFR)
DSX-1 Pulse Output 6 V
DSX-1 Input Level +1.5 to -7.5 dB DSX
• Payload (PL) or HiGain (HG) loopback source
identification
• Bipolar Violation Transparency (BPVT) option
• Report menu option for downloading status
and performance monitoring data to a file
• Performance Report Messaging (SPRM and
NPRM)
• Supports the inband 100 loopdown and
100000 loopup commands when the
SmartJack (SMJK) loopback option is enabled
• Sources sealing current when connected to an
H2TU-R-402 List 5E or higher
pk-pk
, pre-equalized for 0 to 655 feet of ABAM cable
I
NSTALLATION
Raise the H2TU-C-388 front panel and slide the unit into the CO shelf card slot. Lower
and push on the H2TU-C-388 front panel to secure the unit in the shelf.
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 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 logon 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" table inside).
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.
Þ
Continued