job
Aid
1
6540 Rear Panel
SHDSL
G.703
Nx64K
V.35/V.36
X.21
100-240VAC 50/60Hz 100mA
CONTROL V.28
Express 6500 Series
6540 Front Panel
D
ESCRIPTION
The AC Powered 6540 SHDSL 2-Wire/4-Wire NTU (P/N
1230001E1) functions as an interface between the SHDSL network
and the Data Terminal Equipment (DTE).
The 6540 supports applications such as LAN-to-LAN bridging,
Frame Relay circuit, and PABX termination.
The 6540 is designed to be used either as a remote unit to the
ADTRAN Total Access
®
3000 multiservice platform, or as a pair of
units in a point-to-point limited distance campus configuration,
with one 6540 configured to “LT” mode.
F
EATURES
The 6540 supports the following features:
•
Housed in a standalone plastic case
•
Provides four front panel recessed pushbuttons, and eight
front panel LED indicators
•
Provides rear panel SHDSL, G.703, and/or Nx64K ports, and
a local management port
•
Provides a rear panel connection for local AC power
•
Provides bad splice protection using the ADTRAN
proprietary Runtime TScan
™
2.0 splice protection feature (for
more information on this feature and how to locally manage
TScan, refer to the
SHDSL NTU, 2-Wire/4-Wire Product Series
Installation and Maintenance Guide
, P/N 61230001E1-5).
LED I
NDICATORS
Label
Status
Description
SHDSL
{
z
z
z
Off
Green
Yellow
Red
Unit is powered off
Port is trained; no active alarms
Port is trained with a minor active alarm
(1)
Port is attempting to or is trained with a major
alarm
(2)
SHDSL
6540 NTU 2-Wire/4-Wire
AC Powered
1. Minor SHDSL port alarms: CRC errors, Loop Attenuation Threshold Alarm, SNR
Margin Threshold Alarm, Segment Anomaly, and any ES, SES, UAS, CVC, and
LOSWS 15-Minute Threshold Alarm
2. Major SHDSL port alarms: LOS, LOSW, or Segment Defect
3. Minor G.703 port alarms: Rx RAI, Frame Slip, CRC-4 errors, LBER, and any ES,
SES, UAS, and CVC 15-Minute Threshold Alarm
4. Major G.703 port alarms: LOS, LOF, LOMF, Rx AIS, or HBER
5. Nx64K port alarms: Clock Slip, Loss of External Clock, FIFO Underflow/Over-
flow, and Inactivity Alarm
G.703
{
z
z
z
Off
Green
Yellow
Red
Port is not active
Active Port with no active alarm
Active Port with a minor alarm
(3)
Active Port with a major alarm
(4)
NX64K
{
z
z
Off
Green
Red
Port is not active
Active Port with no active alarm
Active Port with an active alarm condition
(5)
RTS/C
{
z
Off
Green
Nx64K port is not active or when active, V.35/
V.36 “Request To Send” or X.21 “Control” line
from the DTE is off
V.35/V.36 “Request To Send” or X.21 “Con-
trol” line from the DTE is on
RLSD/I
{
z
Off
Green
Nx64K port is inactive or when active, V.35/
V.36 “Receive Line Signal Detector” and X.21
“Indication” control line from the NTU is off.
V.35/V.36 “Receive Line Signal Detector” or
X.21 “Indication” control line from the NTU
(DCE) is on
LLOOP
{
z
z
Off
Yellow
Red
Local Loop is not active
Active Local Loopback on the selected port
Active Local Loop on one or more ports or ser-
vices (when no port is selected)
RLOOP
{
z
z
Off
Yellow
Red
Remote Loop is not active
Active Remote Loopback on the selected port
(when determined via established EOC)
Active Remote Loop on one or more ports or
services (when no port is selected)
BERT
{
z
z
z
Off
Green
Yellow
Red
BERT is not active
Active BERT and the test pattern detector is
synchronized with no received bit errors
Active BERT and one or more test pattern bit
errors have been received
Active BERT but the test pattern detector is
not synchronized
Label
Status
Description
Product P/N: 1230001E1
Issue Date: September 2011
Document P/N: 61230001E1-22C
