
DSX-1 Plug-On Board
Part Number 1200114L1
USER MANUAL
61200.114L1-1A
August 1995
61200.114L1-1 DSX-1 Plug-On Board User Manual i

901 Explorer Boulevard
Huntsville, AL 35806-2807
Phone: (205) 971-8000
Fax: (205) 971-8699
©1995 ADTRAN, Inc.
All rights reserved.
Printed in USA.
ii DSX-1 Plug-On Board User Manual 61200.114L1-1

FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT:
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio frequencies. Operation
of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.
WARNING Change or modifications to this unit not expressly approved
by the party responsible for compliance could void the user’s authority
to operate the equipment.
61200.114L1-1 DSX-1 Plug-On Board User Manual iii

iv DSX-1 Plug-On Board User Manual 61200.114L1-1

Table of Contents
Chapter 1. Introduction...................................................................................... 1
DSX-1 Plug-On Board Overview ........................................................................... 1
Functional Description .......................................................................................... 1
Features ................................................................................................................... 2
Interfaces ................................................................................................................ 2
DSX-1 Plug-On Board Specifications ................................................................... 3
Physical Description .............................................................................................. 4
Chapter 2. Installation ........................................................................................ 5
Unpack and Inspect ............................................................................................... 5
Shipped by ADTRAN ...................................................................................... 5
Provided by Customer .................................................................................... 5
Installing the Option Module ............................................................................... 6
Attaching the Plug-On Board to the Option Module .................................. 6
Wiring .............................................................................................................. 7
Power-Up Initialization .......................................................................................... 8
Operation Alarms ............................................................................................ 8
Warranty and Customer Service .......................................................................... 9
Chapter 3. Operation ........................................................................................ 11
Overview ............................................................................................................... 11
Menu Structure ............................................................................................. 11
Menu Operation ............................................................................................ 11
DSX-1 Plug-On Board Menu Items .................................................................... 13
Port Status ...................................................................................................... 13
CRC ................................................................................................. 13
BPV .................................................................................................. 14
XS0 ................................................................................................... 14
FER .................................................................................................. 14
Port Configuration (PORT CONFIG) ......................................................... 14
Format ............................................................................................. 14
Code ................................................................................................ 14
Yellow Alarm ................................................................................... 14
Line Length (ft) .............................................................................. 14
In-band Loopback (INBAND LPBACK) ....................................... 15
Robbed Bit Signaling ...................................................................... 15
Port Utility (PORT UTIL) ............................................................................. 16
Port Test .................................................................................................. 16
Loopback ......................................................................................... 16
61200.114L1-1 DSX-1 Plug-On Board User Manual v
i

T able of Contents
TSU Features Used With DSX-1 Plug-On Board Option ................................. 18
Factory Restore .............................................................................................. 18
Run Self Test .................................................................................................. 18
Appendix A. DSX-1 Plug-On Board Failure Messages ................................. 19
Failure Messages At Power-Up ............................................................................ 19
DSX-1 Plug-On Board Alarm Messages.............................................................. 19
Appendix B. DSX-1 Plug-On Board Menu Tree ............................................ 2 1
Figures
Figure 1-1 DSX-1 Plug-On Board ........................................................................ 4
Figure 2-1 Installing Option Module .................................................................. 6
Figure 3-1 TSU 100 Main Menu ........................................................................ 12
Figure 3-2 Port Status Display ........................................................................... 1 3
Figure 3-3 Diagram of Loopbacks ..................................................................... 17
Figure B-1 DSX-1 Plug-On Board Menu Tree ................................................... 21
Tables
Table 2-A Pinout Connectors for Eight-Position Modular Jack Interface ........ 7
Table 3-A Port Configuration Parameters .......................................................... 15
vi DSX-1 Plug-On Board User Manual 61200.114L1-1
ii

DSX-1 PLUG-ON BOARD OVERVIEW
The DSX-1 plug-on board is one of the plug-on options
available for use with the ADTRAN TSU 100/600. The
DSX-1 plug-on board provides a single DSX-1 interface
that can be used to provide access to a PBX, router, or
other equipment that uses a DSX-1 interface. When
used with a PBX, this interface permits the combination
of voice and data in a single T1 stream. The allocation
of the amount of bandwidth for the DSX-1 plug-on
board is selectable.
Chapter 1. Introduction
Chapter 1
Introduction
When plugged onto any option card other than the drop
and insert (D&I) or DSX-1 option modules, the DSX-1
plug-on board operates exactly like the DSX-1 passthru
option module. The DSX-1 plug-on board can also be
installed on option modules in slots 1 through 5 of the
TSU 600 and used as a data port for applications not
requiring robbed-bit signaling. When plugged onto a
drop & insert option module, the DSX-1 plug-on board
can be used as a PBX port for the drop & insert T1. In
this configuration, robbed bit-signaling can be enabled
or disabled from a front-panel menu option.
FUNCTIONAL DESCRIPTION
The DSX-1 plug-on board operates as a plug-on with any
TSU option module. The DSX-1 plug-on board is
configured from the front panel of the TSU 100/600 or
by an external personal computer (PC) program. The
61200.114L1-1 DSX-1 Plug-On Board User Manual 1

Chapter 1. Introduction
FEATURES
internal menus for its configuration are a part of the
passthru and are automatically installed when the DSX-1
plug-on board is present in the unit.
The DSX-1 plug-on board has the following features:
• Operates using 1 to 24 DS0s
• Executes an extensive self test
• Can be used as a PBX port for the drop and insert
option module
• Displays menu options for easy configuration
• Functions as a data port in slots 1 through 5 of the
TSU 600
When used as a DSX-1 passthru:
• Operates as a drop and pass-on or as a standard passon module
• Provides timing for the TSU 100/600 as an option
INTERFACES
The DSX-1 plug-on board interface has the following
features:
• DSX-1 per ANSI T1.102
• RJ-48C interface connector
• Alternate mark inversion (AMI) or binary 8 zero
substitution (B8ZS) coding
• Extended superframe (ESF) or superframe (SF) (D4)
formatting (independent of T1 facility interface)
• Line length up to 655 feet
• Line loopback (front panel/remote/inband)
2 DSX-1 Plug-On Board User Manual 61200.114L1-1

DSX-1 PLUG-ON BOARD SPECIFICATIONS
The DSX-1 plug-on board conforms to the following
specifications:
DSX-1 Interface Per ANSI T1.102
Line rate 1.544 Mbps
Capacity 1 to 24 DS0s (can be user
configured, contiguous or noncontiguous)
Line Codes AMI
Bipolar return to zero (B8ZS)
Framing Options ESF per ANSI T1.403 and AT&T
Publication TR 54016;
D4 per AT&T Publication 62411
Line Length -3 dB dsx up to 655 feet in 110 feet
steps
Chapter 1. Introduction
Clock Source Supports network, secondary,
and CSU timing modes
Tests Power-on circuit self test
Line loopback
Port loopback (internal toward
Mux)
Connectors RJ-45C
61200.114L1-1 DSX-1 Plug-On Board User Manual 3

Chapter 1. Introduction
PHYSICAL DESCRIPTION
The DSX-1 plug-on board (see Figure 1-1) is a plug-on
board that plugs onto the TSU 100/600 option modules.
DSX-1
2x32 Plug-On
Connector
Mounting Screw
Holes
Figure 1-1
DSX-1 Plug-On Board
4 DSX-1 Plug-On Board User Manual 61200.114L1-1