PairGain HLU-319, Quick Installation Manual, Page: 7 / 20

350-319-153-01, Revision 01 Overview
HLU-319 List 5C April 30, 1999 3
Table 2 describes the status LED.
Table 1. Front Panel Features
Front Panel Feature Function
List number Identifies a specific version of the HLU-319.
Status LED See Table 2 for status descriptions.
DSX-1 access jacks
Line Provides splitting jack access to and from the HDSL line at the
DSX-1 interface. Breaks the Transmit (XMT) and Receive
(RCV) paths to permit test signal insertion and retrieval.
BRG Provides non-intrusive bridging jack access to (XMT) and from
(RCV) the HDSL span at the DSX-1 interface. Allows the two T1
payloads to be monitored.
CLEI and bar code labels
(on the inside of the
handle) Provides the human-readable Common Language Equipment
Identifier (CLEI) code number and the Equipment Catalog Item
(ECI) bar code number.
Configuration number
(on the outside of the
handle) Contains either a five or six-digit warranty configuration
number or a stand-alone two or three-digit configuration
number as follows:
Digit 1 - Last digit of shipment year
Digits 2 and 3 - Shipment month
Digits 4, 5, and 6 - Configuration number
The configuration number can also be found on a small bar
label that also contains the Julian date code and part number.
This gummed label may be attached to the PC board or to the
front panel.
Table 2. Status LED
LED Status Description
Green Normal operation
Flashing green HDSL acquisition
Red Fuse Alarm
Flashing red System alarm
Yellow Self Test is in process or an HLU Customer Remote Loopback (CREM)
or a Network Local Loopback (NLOC) is in effect.
Flashing yellow HLU is in an Armed state