Atec TTC-2207 User Manual

2000 Test Pad

™

2207 T1/T3 Wireless Field Services Module

Product Highlights

• Easy-to-use, touch-screen graphical
user interface (GUI) simplifies and
expedites testing

• Modular 2000 Test Pad architecture
enables up-to-date support for
established and emerging technolo­gies in a single platform

• Engineered for the field with rugged
construction, lightweight design,
and battery-powered operation

• Dual PCMCIA slots support easy
installation of future upgrades and
bring added testing functionality
and versatility

• Automated testing features mini­mize training costs and testing
complexity

• Combined with DS1, DS3, ISDN PRI
and GSM features, the 2207 is an
all-in-one solution for high-speed
testing the TDM portion of wireless
networks

Application Highlights

• Isolate and troubleshoot physical layer
problems associated with data or other
services

• Verify proper network routings and
signal delays to ensure all fractional T1
channel signals are terminated properly
and with the correct timing

• Monitor network voice quality and
signaling

• Test the ability of a PBX/Switch to
handle incoming calls

• Verify or troubleshoot ISDN PRI
service

• Qualify DS3 circuits with an array of
BERT patterns

• Analyze DS1 tributaries at DS3 access
points

• Monitor the quality of Global System for
Mobile Communications (GSM) digital
wireless traffic

The 2207 T1/T3 Wireless Field Services Module adds digital wireless network test
capabilities as well as standard T1 and ISDN PRI qualification and troubleshooting
applications to the 2000 Test Pad. It supports GSM network testing from a T1 access
point to quickly and accurately diagnose and differentiate wireless service problems
from T1 problems. Use the 2207 between the base station and the switch without
disrupting revenue-generating traffic.

1

Function Highlights

• DS1 signal analysis and BER testing with standard and advanced stress patterns

• Dual DS1 receivers for in-service monitoring and drop-and-insert testing

• DS3 BER testing analysis with patterns for both M13 and C-bit framing

• Drop DS1 channels from a DS3 signal for testing or monitoring

• Monitor, place, or receive calls over T1 voice trunks and analyze signaling bits

• Transmit and measure tones on individual PCM channels

• ISDN PRI call placement and receipt, backup D-Channel and NFAS testing, and Layer three Q.931 results

• VT100 Emulation for equipment configuration and results monitoring

• Monitor and test GSM traffic from a T1 access point

In addition to its digital wireless network test capability, the 2207 includes the TestMATE automated T1 bit error
rate testing option which enables both experienced and novice technicians to quickly and accurately install and
maintain T1 networks.

The 2207 T1/T3 Wireless Module also provides the capability to monitor GSM traffic from a T1 access point
non-intrusively. It displays a real-time overview of traffic activity on all 24 DS0 channels and four sub-channels.

Fast, simple and intuitive, the 2207 quickly
provides your test results

2

Applications

The 2207 is designed to simplify testing of today’s complex networks by adding the key functionality required to ensure
performance of digital wireless networks. Programmed with highly integrated applications for in-service and out-of­service testing, the 2207 tests at both the pipeline and service levels to ensure that your network is performing as
advertised. Applications include:

DS1 Physical Layer Testing

Whether provisioning or troubleshooting T1 service, often the first step is to verify proper circuit operation throughout
the network by testing the physical layer. Typical requirements include BER testing, signal, alarm, and timing tests to
ensure proper performance of T1 network connections.

BER testing is typically conducted from the customer premises at an NIU or HTU-R. To identify and sectionalize
circuit problems from network equipment faults, the 2207 provides the capability to monitor and perform BER testing
in both directions of a circuit simultaneously. The use of standard or user-programmable loopcodes to loop-back
network equipment allows for further sectionalization of network troubles. In addition to commonly used BER testing
patterns such as QRSS, the 2207 also offers several industry-recommended advanced stress patterns, including 55 Octet
and T1 Daly to ensure network performance.

Advanced timing analysis allows the technician to pinpoint signal delays, timing slips, and mismatches between switch
and remote equipment.

2207

NIU/

SMART

JACK

T1 T1 T1 T1

DSX-1 SWITCH

NIU/

NETWORK

Simultaneously monitor and test
in both directions on a circuit

2207

SMART

JACK

CSU/

DSU

3

Fractional T1 Channel Testing

The 2207 qualifies of fractional T1 service to verify proper network routings and signal delays ensuring that all channel
signals are terminated properly and with the correct timing. In rural locations or on the outer reaches of the service
area, it is often critical to isolate single-circuit faults without disrupting the entire line.

T1 T1 T1 T1

DSX-1 SWITCH

2207

NIU/

SMART

JACK

NETWORK

Verify proper network routings
and signal delays

2207

NIU/

SMART

JACK

CSU/

DSU

VF Channel Access and PCM TIMS

When problems with voice service arise, the ability to quickly and effectively measure the quality of voice transmissions
on the network circuit is required. By monitoring data or signaling bits, the 2207 can check and verify individual
channels without disrupting network traffic. Transmitting and measuring tones on an individual PCM channel
utilizing the 2207’s in-service channel access affects only the channel under test and provides a further level of
performance analysis without impacting other revenue-generating channels. The 2207 provides TIMS measurements
such as:

• Level

• Frequency

• Signal to Noise Ratio

• Noise (C-Message and C-Notch filters)

PBX

The 2207 quickly and effectively
measures the quality of voice
transmissions on the network circuit

4

NIU/

SMART

JACK

2207

DSX-1 SWITCH

2207

Signaling

After testing the physical layer when provisioning or troubleshooting T1 voice trunks, it is also necessary to test the
transmission and signaling performance of the circuit to verify the ability of a switch or PBX to handle incoming calls
and ensure switch-to-switch communications. By placing, receiving, or monitoring voice calls, connectivity can be
verified. Capture and display of digits, signaling events, and signaling bits provides a more detailed level of analysis.

The 2207 also simultaneously displays physical layer results so comprehensive testing of the voice trunk can be
completed in a matter of minutes. The 2207 provides signaling and voice results such as:

• DP, DTMF, MF digit recognition

• Inter-event/digit delay mesurements

• Event/digit duration measurements

• Speaker/Mircophone or handset functionality for checking voice integrity

• Signaling (ABCD) bits

DSX-1 SWITCH

NIU/

SMART

PBX PBX

JACK

NETWORK

NIU/

SMART

JACK

2207

Monitor network voice
quality and signaling

2207

5

DS3 Testing

The first step in provisioning DS3 circuits is qualifying the physical layer. The 2207 provides the ability to qualify DS3
circuits with an array of BER testing patterns for both M13 and C-bit framing and supports the verification of frame
synchronization on the circuit.

For more comprehensive and flexible testing, it is also often necessary to insert test patterns or tones on single, multiple,
or all DS1 channels within the DS3 circuit. The 2207 DS3 BER testing measurements include:

• DS3 FEAC loopback codes

• Advanced stress patterns

• Signal level and frequency

• Insertion of logic and frame errors

A final level of analysis is provided by dropping DS1 channels from the DS3 signal for testing or monitoring
individual channels.

DSX-3 DSX-3

Mux Span

MON

OUT

DSX-3

IN

2207

High order

transmission system

DSX-3

MuxSpan

MON

OUT

IN

With the 2207, you can qualify
DS3 circutis with a host of BER

testing patterns

6

ISDN PRI Testing

After the physical layer has been verified, testing during the provisioning of ISDN service is typically performed at the
customer premises by emulating a TE device, such as a PBX, to place and receive voice and data calls. The 2207 supports
multiple call types and provides call status results and progress reports for an additional level of detail to ensure calls
are successfully established. The reports are also useful for troubleshooting calls that are not established. When
multiple PRI lines are in use at the same location, it is often necessary to perform back-up D-Channel and NFAS testing.

By simultaneously providing the user with physical layer (T1), layer 2 (LAPD), and layer 3 (Q.931) results as well as
plain text decodes, the 2207 provides an efficient means to verify or troubleshoot the ISDN PRI service. The 2207 tests
PRI lines allowing the following:

• Test multiple call types including voice, 56K, 64K, Nx56K, Nx64K, and H0 to verify correct switch translations
for both inbound and outbound calls.

• Test data services (calls) using BER testing patterns

• Place and receive calls

• Receive call status results which provide a summary of calls

• Receive English decodes of layer 3 cause codes

• Receive full layer 3 Q.931 decodes, with the ability to print

• Place and receive calls on either T1 (secondary or primary) for NFAS configurations

• Switch from Standby D-Channel to Inservice D-Channel for verification of D-Channel back-up operation in
NFAS configurations

2207

NIU/

SMART

JACK

DSX-1 ISDN

2207

SWITCH

Verify or troubleshoot your customers’
ISDN PRI service using the 2207’s ISDN
testing capabilities

ISDN

NETWORK

PBX

7

GSM Testing

When provisioning or troubleshooting GSM networks, it is necessary to verify both voice quality and connectivity.
Non-intrusively monitoring traffic—including voice conversations and service statistics from a T1 access point verify
the A
comprehensive measure of network and circuit performance. This also allows for sectionalization of trouble between
different network elements. Finally, the 2207 can be configured to simultaneously display both service and physical
layer (T1) results and provide quick and easy differentiation between GSM service problems and T1 problems. The
2207 supports the following tests and measurements:

• Full rate and enhanced full rate traffic monitoring

• GSM traffic results including TRAU frame type values

• TRAU framing results

• Speaker/Microphone or handset functionality for checking voice integrity

• GSM LAP-D signaling results

• GSM Measurement Report message results such as average uplink signal quality and signal level

interface between the Base Tranceiver Station (BTS) and Base Station Controller (BSC)—provides a

bis

Air Interface

1900 MHz

A

Interface A Interface

bis

MSCBCS

The 2207 T1/T3 Wireless Field Service Module
allows you to monitor the quality of
GSM service

BTS

T
R
A
U

PSTN

8

Technical Specifications

Physical Characteristics

Overall Dimensions:

7.5 x 11.5 x 2.25 in.
Weight:

4.25 lb. (1.93 kg), with battery

Environment

Temperature Range
Operating:

32°F to 122°F (0°C to 50°C)

Storage:

-40°F to 167°F (-40°C to 75°C)

Humidity:
10% to 90% relative humidity,
non-condensing

Power Requirements

AC Adapter:

100-220 at 60 Hz or
200-240 at 50Hz VAC

to 19 VDC, 2.37 AMPS
Charging Time:
Maximum of 2 hours from full

discharge
Battery Type:

10.8 V NiMH
Operating Time:
Typically 3 hours on a full charge (DS1

operation only)
Typically 2 hours on a full charge (DS3

operation only)

Display

6-inch diagonal graphic LCD color
display

Input and Output Connectors

Bantam (4) and RS-232 (printer

operation)

(19 x 29.2 x 5.7 cm)

Input Impedance

BRIDGE:

≥1000Ω

TERM:

100Ω_±5%

DSX-MON:

100Ω_±5%

Receive Level

BRIDGE or TERM:
+6 to -35 dBdsx
DSX-MON:
+6 to -24 dBdsx (of resistive loss)

Line Build Out (LBO)

Range:
0, -7.5, -15.0, -22.5 dB
Accuracy:

±1 dB at 772 kHz

Transmit Timing Sources

Internal Clock, Recovered Clock

Line Codes

AMI, B8ZS

DS3 specifications (optional)

Input and Output Connectors

WECO 560A

Impedance

75Ω, nominal unbalanced to ground

Receiver (Single) Frequency

44.736 Mb/s ±300 ppm

9

Level (From Output or Monitor Jack)

HIGH:
Accepts nominal 1.2 Vp, 0 ft of cable

from high source
DSX:
Accepts nominal 0.6 Vp, 450 ft of cable

from high source
LOW:
Accepts nominal 0.3 Vp, 900 ft of cable

from high source

Transmitter (Single) Frequency

44.736 Mb/s ±20 ppm

Line Build Out (LBO)

HIGH:
Nominal 1.2 Vp signal meets ANSI

specification
T1.102-1993 and ITU-T G.703 when

subjected to 450 feet of cable loss
DSX:
Nominal 0.61 Vp signal meets ANSI

specification
T1.102-1993 and ITU-T G.703
LOW:
Nominal 0.31 Vp

10

Line Code

B3ZS

Ordering Information

User Interface Module

TTC2000-C 2000 Test Pad with color display

(includes kickstand, AC adapter/changer, hanging strap, and printer cable)

Application Modules

TB2207-DS1 2207 DS1 Wireless Communications Analyzer
TB2207-DS3 2207 DS1/DS3 Wireless Communications Analyzer

Additional Application
Modules Available

2209 T1/T3 Field Services Module
2109 Copper Analyzer Module
2357 DSL Broadband Services Module
2230 E1/Data Communications Analyzer
2310 SONET Field Services Module
2416 SDH Field Services Module

Analyzer Options

TB2207-ASP Advanced Stress Patterns
TB2207-FT1 Fractional T1
TB2207-TIM VF PCM TIMS
TB2207-SIG Signaling
TB2207-PRI Primary Rate ISDN
TB2207-ILE Intelligent Line Equipment
TB2207-GSM PCS-1900 (GSM) VF Option
TB2207-HDLC Fractional HDLC Option
TB2207-VT100 VT100 Emulation
TB2207-EXPERT TestMATE

Optional Accessories

AC-31705 External Battery Charger
AC-31905 Cigarette Lighter Adapter/Charger
BA-014081 Replacement Battery
CC-44581 Carrying Case/Tilt Stand (includes adjustable strap)
CC-44605 Carrying Case, Large Soft
CC-45158 Carrying Case, Multi-Mode (soft)

Package Descriptions

2207-P1 Field Service Package
2207-P2 DS3/DS1 Package
2207-P3 DS1 Package

11

Global Headquarters

20400 Observation Drive
Germantown, Maryland 20876-4023 USA
Toll Free 1 800 638 2049
Tel [phone]
Fax [phone]
www.acterna.com

NOTE: Specifications, terms, and conditions are subject to change with­out notice.

© Copyright 2001, Acterna, LLC., doing business as Acterna. All rights
reserved. Acterna, The Keepers of Communications, and its logo are
trademarks of Acterna, LLC. All other trademarks and registered trade­marks are the property of their respective owners.

Regional Sales Headquarters

North America

20400 Observation Drive
Germantown, Maryland 20876-4023
USA

Toll Free 1 800 638 2049
Tel [phone]
Fax [phone]

Latin America

Av. Eng. Luis Carlos Berrini,
936 8/9 Andar
04571-000 Sao Paulo, SP
Brazil

Tel [phone]
Fax [phone]

Asia Pacific

42 Clarendon Street
PO Box 141
South Melbourne, Victoria 3205
Australia

Tel [phone]
Fax [phone]

Acterna is present in more than 80 countries. To find your local sales office, go to www.acterna.com

Western Europe

Arbachtalstrasse 6
72800 Eningen u.A.
Germany

Tel [phone]
Fax [phone]

Eastern Europe, Middle East & Africa

Elisabethstrasse 36
PO Box 13
2500 Baden
Austria

Tel [phone]
Fax [phone]

st

Neopalimovskiy Per. 15/7 (4th floor)

1
119121 Moscow
Russia

Tel [phone]
Fax [phone]

2207WFSM/PRE/LL/GER/1-01

12

TTC AND WWG ARE NOW ACTERNA. TO LEARN MORE, VISIT WWW.ACTERNA.COM