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Installation
2
Connect the HDSL line cable from the DTE to the mating connector on
the ETU rear panel. The pinouts for the HDSL line connector are listed
at the top of page 12.
Pin
4
9
1
6
(a) No other pins are used.
3
Set the DTE to the correct data rate (or keep the DTE disconnected).
HDSL S
TARTUP AND
At startup, a WorldDSL RS LTU confirms that it is communicating with a
WorldDSL RS NTU. The LTU then synchronizes the NTU configuration
with its own configuration.
1
Power up the shelf or enclosure where the units are installed.
2
Confirm the following:
•
The HDSL ALM LED is on and the HDSL SYNC LED flashes once
per second as the units self-configure and establish synchronization.
•
After approximately 60 seconds the HDSL ALM LED is off and the
HDSL SYNC LED is steady green. The units are now ready for
configuration through the console screen menus.
If the HDSL SYNC LED continues to flash after 90 seconds, the
HDSL line is faulty, the Local Unit Role is not configured as
LTU, or one of the units is not a rate-selectable unit. Check for
the correct line units and local unit role. Test the HDSL line
using the loopbacks described in user manual 700-701-100-xx.
Changing the HDSL Payload Rate or Local Unit Role causes
the unit to reset and the LEDs to cycle. Log on again by
pressing the
on page
12
HDSL Line Connector Pinouts
(a)
Signal
HDSL_RING_A
HDSL_TIP_A
HDSL_RING_B
HDSL_TIP_B
SPACEBAR
16).
June 5, 2002
Description
HDSL Ring Loop 1
HDSL Tip Loop 1
HDSL Ring Loop 2
HDSL Tip Loop 2
S
YNCHRONIZATION
several times (see
700-701-900-02, Revision 02
"System Settings"
UTU-701C and ETU-751C List 1
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