350-611-103-01
March 17, 1998
Revision
01
HLU-611
List
3
PairGain
Engineering - Plant Series
3
The HLU-611 List 3 front panel components are:
Name
Function
Front panel display
Four character LCD that provides status messages for VHDSL,
S/N margin, optional settings and alarms.
System
option buttons
MODE and SEL (Select) buttons used to set system modes.
Status LED
Tri-color LED that indicates system state:
Green: Normal
Operation
Flashing
Green: VHDSL
Acquisition
Flashing Red:
Minor Alarm
Red:
FUSE ALRM
Yellow:
Self Test in progress or an HLU-
611
List 3 loopback in effect (CREM) or
(NLOC)
Flashing Yellow:
The HLU-611 intelligent loopback is in
an ARMED state
Receive (RCV) and
Transmit (XMT)
Splitting access and bridging "210-Bantam"-type jacks.
Craft port
RS-232 connector that provides access to the maintenance,
provisioning, and performance monitoring interface through a
dumb terminal.
Retaining latch
Secures the HLU-611 to the shelf in which it is installed.