PairGain 150-1111-72, Быстрое руководство по установке

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Revision 01 Section 350-231-172
HLU-231 List 7B 3
The HLU-231 List 7B front panel components are:
Compatibility
The HLU-231 List 7B is designed to mount in the following shelves with 220
mechanics:
• PairGain HCS-418 19-inch shelf
• PairGain HCS-417 23-inch shelf
• 220-configuration Office Repeater Bay (ORB) shelf or equivalent Small
Cross Section Shelf (SXSS)
• Kentrox T-Term shelf
• PairGain HCS-402 shelf
Name Function
Front panel display Four character LCD that provides status messages for
HDSL, 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 HDSL Acquisition
Flashing Red Minor Alarm
Red FUSE ALRM
Yellow Self Test in progress or an
HLU-231 List loopback in effect
(CREM) or (NLOC)
Flashing Yellow The HLU-231intelligent loop-
back 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 mainte-
nance, provisioning, and performance monitoring inter-
face through a dumb terminal.
Retaining latch Secures the HLU-231 to the shelf in which it is installed.