ADTRAN Total Access 1500 is a modular telecommunications platform that provides a range of voice and data services. It is designed for use in a variety of applications, including central offices, remote terminals, and enterprise networks. The ADTRAN Total Access 1500 can be configured with a variety of modules, including:
- Line Interface Units (LIUs) to connect to T1, E1, and other types of digital circuits.
- Voice Processing Units (VPUs) to provide voice compression, echo cancellation, and other voice processing functions.
- Data Processing Units (DPUs) to provide data compression, encryption, and other data processing functions.
ADTRAN Total Access 1500 is a modular telecommunications platform that provides a range of voice and data services. It is designed for use in a variety of applications, including central offices, remote terminals, and enterprise networks. The ADTRAN Total Access 1500 can be configured with a variety of modules, including:
- Line Interface Units (LIUs) to connect to T1, E1, and other types of digital circuits.
- Voice Processing Units (VPUs) to provide voice compression, echo cancellation, and other voice processing functions.
- Data Processing Units (DPUs) to provide data compression, encryption, and other data processing functions.
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DESCRIPTION
The Quad Line Interface Unit (Quad LIU)
is a common module for the ADTRAN
standard Total Access 1500 chassis (P/N
1180001L1) or the Total Access 1500 19-
inch chassis (P/N 1180019L1). The Quad
LIU connects the chassis to a T1 line at
the DSX-1 or DS1 level. All data
formatting and line encoding as well as
backplane timing and control are
performed by the Quad LIU.
The Quad LIU incorporates SLC Mode II
operation, fast failover to the optional
redundant offline LIU, and works in
conjunction with the System Controller
Unit (SCU) to provide for Voice
Frequency (VF) Test Access.
There are two versions of the SCU:
Central Office Terminal (P/N
1180008L22)
Remote Terminal (P/N 1180008L23)
The Quad LIU is designed to interface with a T1 metallic Span
(DS1) providing span termination, line build-out, as well as
second-level lightning and surge protection of the Total Access
1500 system from the metallic T1 pairs. The Quad LIU can also be
deployed behind a T1 Network Interface Unit/Smartjack (NIU) or
T1 Office Repeater (T1-OR), including HDSL, HDSL2, and HDSL4
Central and Remote Terminating Units (DSX-1). When deployed
in a redundant Quad LIU configuration, another Quad LIU must
be used to insure proper operation of the additional features.
NOTE
This release of the Quad LIU software is designed to operate with
SCU software release V15 or later to support these feature
enhancements.
LIU
1180109L2
A
C
P
YEL
REM
ONLINE
B
D
RED
RCV
TEST
STATUS
TX
MONITOR
RX
Total Access 1500
Quad Line Interface Unit
Features
The basic features of the Quad LIU include the following:
Terminates up to 4 T1 lines providing DSX-1 or DS1 interface
to the network
Terminates 1 T1 Protect Line for Quad LIU protection
Supports up to 96 DS0s
Superframe (SF), Extended Superframe (ESF), or SLC-96 data
framing formats
AMI or B8ZS line code formats
Local and remote loopbacks
Front panel bantam jacks for monitoring T1s
Local, loop, or external timing modes
Supports ANSI T1.403 in-band payload and line loopback
Supports VF Test Access when deployed with either of the
following SCUs:
o P/N 1180008L22
o P/N 1180008L23
Supports SLC Mode I, II, and III
INSTALLATION
Prior to installation, inspect the Quad LIU. If damage has
occurred during shipping, file a claim with the carrier, and then
contact ADTRAN Customer Support. For more information, refer
to “Warranty”.
The Quad LIU plugs directly into the ADTRAN Total Access 1500
chassis. No installation wiring is required.
The Quad LIU should be installed in the Total Access 1500 chassis
in the slot labeled LIU-A or LIU-B. Refer to the “Provisioning”
section prior to module insertion.
NOTE
This release of the Quad LIU software is designed to operate with
SCU software release V15 or later to support feature
enhancements. SCU software can be found at www.adtran.com
under the Service/Support page.
CLEI: VAI2AD2F_ _
Product P/N: 1180109L2
Issue Date: January 2013
Document P/N: 61180109L2-22A
Documentation for ADTRAN Carrier Networks products is
available for viewing and download directly from the
ADTRAN Support Community website.
Go to:
https://supportforums.adtran.com/welcome
Registration is required.
The following documents provide additional information for this product:
Total Access 1500 Quad Line Interface Unit Installation and Maintenance Practice
2 61180109L2-22A
Front Panel LEDs
The front panel LEDs provide status and alarm information. See
the table below for LED descriptions.
Label Status Description
A
-
Off
Green
Yellow
Red
Flashing
T1-A in Monitor Mode
T1-A Active
T1-A in Yellow Alarm
T1-A in Red Alarm
T1-A in Test
B
-
Off
Green
Yellow
Red
Flashing
T1-B in Monitor Mode
T1-B Active
T1-B in Yellow Alarm
T1-B in Red Alarm
T1-B in Test
C
-
Off
Green
Yellow
Red
Flashing
T1-C in Monitor Mode
T1-C Active
T1-C in Yellow Alarm
T1-C in Red Alarm
T1-C in Test
D
-
Off
Green
Yellow
Red
Flashing
T1-D in Monitor Mode
T1-D Active
T1-D in Yellow Alarm
T1-D in Red Alarm
T1-D in Test
P
-
Off
Green
Yellow
Red
Flashing
T1-P in Monitor Mode
T1-P Active
T1-P in Yellow Alarm
T1-P in Red Alarm
T1-P in Test
RED Red Monitored T1 in Red Alarm
YEL Yellow Monitored T1 in Yellow Alarm
RCV Red Monitored T1 bipolar or logic error detected
REM
Off
Green
Locally Provisioned (DIP Switches)
Remotely Provisioned (Craft or Network)
TEST Yellow Test Mode Active
ONLINE
-
Green
Yellow
Flashing
Online Unit
Offline Unit
Provisioning in progress. Failover not possi-
ble
To install the Quad LIU, complete the following steps:
1. If present, remove the LIU Blank (P/N 1180010L1) from the
appropriate LIU common module slot of the Total Access
1500 chassis.
2. Hold the Quad LIU by the front panel while supporting the
bottom edge.
3. Align the Quad LIU card edges to the guide grooves for the
slot designated LIU-A.
4. Insert the Quad LIU until the edge connector seats firmly
into the backplane.
5. Push the ejector latch in place to ensure the Quad LIU is
fully seated.
NOTE
An additional LIU-B slot is also provided for optional
redundancy.
When the Quad LIU first powers up, it performs the power up
self-tests which check the DRAM and checksum. Once the power
up self-test is complete, the LEDs reflect the true state of the
hardware.
Front Panel Push Button
A push button labeled STATUS is accessible from the front panel
to aid in test and troubleshooting. Momentary activation cycles
through the T1s for monitoring purposes. Activating the switch
for two or more seconds causes the Quad LIU to toggle between
local and remote provisioning.
Bantam Access Jacks
The front panel of the Quad LIU contains metallic splitting jacks.
The MONITOR TX and RX
bantam jacks are provided for nonin-
trusive T1 test access.
NOTE
TX = Transmit (Out) and RX = Receive (In)
61180109L2-22A 3
PROVISIONING
All options on the Quad LIU are provisionable either manually,
using onboard DIP switches, or electronically using the SCU
ADMIN port.
Manual Provisioning
The DIP switches SW1 and SW2 provide the Quad LIU with the
necessary option settings for DSX/DS1 modes of operation. The
figure below shows the orientation of the DIP switches. The
following settings can be configured with the SW1 and SW2 DIP
switches:
SW1
o Line Build Out and DS1 Attenuation
SW2
o Line Code Format
o Framing Format
o Timing Mode
o Terminal Mode
NOTE
DIP switch settings can be used for the initial turn up of the
system, and can automatically assign time slots to physical slots,
depending on the setting selected. If any setting is changed via
the VT100 interface, the REM LED on the front panel illuminates
indicating that the settings have changed.
Line Build Out and DS1 Attenuation
The SW1 switch is used to configure the Line Build Out (LBO)
and DS1 attenuation. The table below shows the DIP switch
settings for SW1.
Distance SW1-1 SW1-2 SW1-3
0-133 (Feet)/0 dB * OFF OFF OFF
133-266 OFF OFF ON
266-399 OFF ON OFF
399-533 OFF ON ON
533-655 ON OFF OFF
–7.5 dB ON OFF ON
–15 dB ON ON OFF
–22.5 dB ON ON ON
1
ON
OFF
SW1 SW2
2
3
1
2
3
4
5
6
7
8
Line Code Format
The SW2-1 SWITCH is used to select the line coding type. The
Line Code Format settings are as follows:
B8ZS: This setting is used to enable Bipolar Eight Zero
Substitution (B8ZS), which allows for Clear Channel operation
for the T1 carrier system. This option must be configured
identically with all other T1 network equipment on this circuit.
AMI: This setting is used to enable Alternate Mark Inversion
(AMI). This option must be configured identically with all
other T1 network equipment on this circuit.
The table on the next page shows the DIP switch settings for SW2.
Framing Format
The SW2-2 switch is used to select the framing format for the
Quad LIU. This setting must be configured identically with all
other T1 network equipment on this circuit. The Framing Format
settings are as follows:
ESF: This setting is used to enable Extended Superframe
Format.
SF: This setting is used to enable Superframe Format.
The table on the next page shows the DIP switch settings for SW2.
Timing Mode
The SW2-3 and SW2-4 switches are used to determine a clock
source for the Total Access 1500 channel bank. The timing mode
settings are as follows:
Local Clock: This setting is used to derive the timing from the
local Quad LIU.
Loop A Clock: This setting is used to derive the timing from
the T1 bit stream.
External Clock input: This setting is used to derive the timing
from an external source.
The table on the next page shows the DIP switch settings for SW2.
Terminal Mode
The SW2-5, SW2-6, and SW2-7 switches select the appropriate
Terminal Type and counting mode for the Total Access 1500
system. The Terminal Mode settings are as follows:
D4; D4 or D1D counting
DLC (Quad D4); D4 counting
SLC Mode 1; D1D counting
SLC Mode 3; D4 or D1D counting
SLC Mode 2
The table on the next page shows the DIP switch settings for SW2.
CAUTION!
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY
HANDLING PRECAUTIONS REQUIRED
Warranty: ADTRAN will replace or repair this product within the warranty period if it does not
meet its published specifications or fails while in service. Warranty information can be
found online at www.adtran.com/warranty.
©2013 ADTRAN, Inc. All Rights Reserved.
ADTRAN CUSTOMER CARE:
From within the U.S. 1.800.726.8663
From outside the U.S. +1 256.963.8716
PRICING AND AVAILABILITY 1.800.827.0807
*61180109L2-22A*
* Denotes factory default settings.
Note: All T1s on a circuit must have SW1-1 through SW2-4 set up identically.
Note: SW2-8 has no function.
Electronic Provisioning
The craft ports on the Total Access 1500 SCU are used to change
default options and obtain access module status through menu
screens. The SCU has a front panel-mounted DB-9 connector,
labeled ADMIN, that supplies an RS-232 interface for connection
to a controlling terminal. The supported terminal type is VT100 or
compatible and is set for 9600 bps, 8-data bits, no parity, no flow
control, and 1-stop bit.
Password and User ID
Password protection is a function of the SCU and is factory
disabled. If password authentication is enabled, the SCU displays
the Logon screen. A valid User Name and Password are required
to access menus.
NOTE
The factory default User Name is “user”, and the default
Password is “password”. The User Name and Password are not
case sensitive.
Refer to the Total Access 1500 Quad Line Interface Unit Installation
and Maintenance Practice (P/N 1180109L2-5) for descriptions of the
Quad LIU Menu Screens.
Function
SW2-1
SW2-2
SW2-3
SW2-4
SW2-5
SW2-6
SW2-7
Line Code Format
AMI OFF
B8ZS* ON
Framing Format
SF OFF
ESF* ON
Timing Mode
Local Clock OFF OFF
Loop A Clock * OFF ON
External Clock input ON OFF
Terminal Mode Counting
D4 D4 OFF OFF OFF
D4 D1D OFF OFF ON
DLC (Quad D4) D4 OFF ON OFF
SLC Mode 1* D1D OFF ON ON
SLC Mode 3 D4 ON OFF OFF
SLC Mode 3 D1D ON OFF ON
SLC Mode 2 N/A ON ON OFF
MAINTENANCE
The Quad LIU does not require routine hardware maintenance
for normal operation. ADTRAN does not recommend that repairs
be attempted in the field. Repair services may be obtained by
returning the defective unit to ADTRAN. Refer to the warranty
for further information. Field support for software is provided
through upgrade facilities.
SPECIFICATIONS
Specifications for the Quad LIU are as follows:
Electrical
o Maximum Current Draw: 0.025 amps max at –48VDC
o Maximum Heat Dissipation: 1.21 watts
Physical
o Height: 3.125 inches (7.94 centimeters)
o Width: 1.14 inches (2.90 centimeters)
o Depth: 10.1 inches (25.65 centimeters)
o Weight: 1 pound (0.45 kilograms)
Environmental
o Operational Temperature Range: –40°C to +65°C
o Storage Temperature Range: –40°C to +85°C
o Relative Humidity: up to 95% at 50°, noncondensing
SAFETY AND REGULATORY COMPLIANCE
RefertotheSafetyandRegulatoryComplianceNoticeforthis
product(P/N61180109L2‐17)fordetailedsafetyandregulatory
information.
Consultez l'avis sur la sécurité et la conformité à la réglemen-
tation pour ce produit (61180109L2‐17) pour obtenir des rensei-
gnements détaillés sur la sécurité et la réglementation.
Ausführliche Sicherheits- und regulatorische Informationen sind
in der Konformitätserklärung zur Sicherheit und Einhaltung von
Normen zu diesem Produkt (61180109L2‐17) aufgeführt.
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ADTRAN Total Access 1500 is a modular telecommunications platform that provides a range of voice and data services. It is designed for use in a variety of applications, including central offices, remote terminals, and enterprise networks. The ADTRAN Total Access 1500 can be configured with a variety of modules, including:
- Line Interface Units (LIUs) to connect to T1, E1, and other types of digital circuits.
- Voice Processing Units (VPUs) to provide voice compression, echo cancellation, and other voice processing functions.
- Data Processing Units (DPUs) to provide data compression, encryption, and other data processing functions.
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