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T1E1 Quad and Octal Analysis & Emulation Hardware

Octal/Quad T1 E1 PCI Board

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GL's Octal & Quad T1 E1 boards are high density and provide Four (4) or Eight (8) RJ-48 T1 E1 ports and multiples thereof. For example, configurations of 8, 12, 16, 64 T1 E1s in a single rack are possible.

Octal/Quad T1 E1 PCI Board on Rack PC
pdf User's Guide
pdf Quick Install Guide
pdf Quick Verification Guide
pdf Product Brochure
pdf Frequency Calibration Procedure User Guide
View Presentation
pdf T1 E1 Release Notes
pdf GL Product Lists

Main Features

  • Software Selectable T1 or E1 interfacing along with Drop and Insert
  • PCI Express x1 Lane/Board
  • Monitor the T1/E1 line conditions such as frame errors, violations, alarms, frequency, power level, and clock (or frame/bit) slips.
  • TDM, ISDN, SS7 – High Density Voice
  • VoIP, Frame Relay, Multilink Frame Relay, PPP and Multilink PPP, HDLC
  • Most all “basic applications” and “special applications” are available for Quad and Octal T1 E1 cards
  • Comprehensive Analysis / Emulation of Voice, Data, Fax, Protocol, Analog, and Digital signals, including Echo and Voice Quality testing
  • Call Recording, Generation, and Monitoring for hundreds to thousands of calls in one platform
  • Windows and Linux Drivers for Open Source Applications
  • Media (VoIP) Gateway, IP PBX, and IVR Applications i.e. Asterisk (TM)
  • Routing and Bridging emulation over Multi T1/E1 WAN interfaces using MLPPP (Multi Link PPP) and MFR (Multi Link Frame relay) protocols
  • Supports “Cross-Port Through” and “Cross-Port Transmit” Modes – these configurations make cabling with Drop/Insert and Fail-Safe Inline Monitoring very easy
  • High Density and High Speed – The boards (with Direct Memory Access) are significantly faster and significantly more efficient
  • Octal boards are compatible with dual, quad, and higher core motherboards and software that simulate dual and quad cores (hyper-threading)
  • Compatible with Windows® XP , 7 and 8 operating systems and user friendly real-time software

GL's offers other popular forms of T1 E1 analysis hardware such as

Comparison and advantages of the new Quad and Octal Cards over Dual T1 E1 Universal Cards are given in the following table.

Feature Universal Dual T1 E1 Boards Quad, Octal T1 E1 Boards
Number of Ports 2 4, 8
PCI Slot Type Uses a PCI Bus / Connector Uses a PCI Express x1 Bus / Connector
Output Frequency Offset Each port can be individually set with an output frequency offset A single frequency offset which is applied to all 8 ports
Pulse Mask Application Supported Not Supported
Jitter Measurement Supported Not Supported
External Clock Mode Supported No clock port connector
VF and Drop and Insert Supported No VF connectors; Digital Drop/Insert supported
Speaker (on board) Supported No speakers
DSX level 20 dB, 26 dB 26 dB +/- 2.5dB

Accompanying Basic Software / Features

GL’s Octal/Quad T1 E1 Analyzer comes with “basic applications” for basic testing needs and “special applications” that extend the capability far beyond the most expensive T1 E1 Data testers. For example, capturing and transmitting an entire raw T1 E1 signal simultaneously on two full duplex ports, or performing ISDN emulation, or SS7 analysis, or analyzing echo and voice quality on voiceband channels, to name a few. A list of all the basic applications and other optional applications (requiring additional licenses) are listed here - List of T1E1 Basic and Optional Applications With Buyers Guide.

However, some of the applications mentioned below are not supported on Octal/Quad boards:

  • ATM Bert
  • Bulk delay for error insertion
  • Single channel echo / delay emulation
  • Protocol classifier


Cross-port Through Loopback

Cross-port Through Loopback

This mode is similar to the standard Outward Loopback except that the signal received on Card 1 (Port 1) is transmitted out onto Card 2 (Port 2). Likewise the signal received on Card 2 (Port 2) is transmitted out onto Card 1 (Port 1). This feature allows monitoring T1/E1 lines in-line while still being protected from loss of power to the board. This mode is implemented entirely thru relays and eliminates complex cabling.

Cross-port Transmit Mode Loopback

Cross-port Transmit Mode Loopback

In this Mode, the data that would normally be transmitted on Card 1 (Port 1) is diverted and transmitted on Card 2 (Port 2) and the data that would normally be transmitted on Card 2 (Port 2) is diverted and transmitted on Card 1 (Port 1). The receive paths are completely unaffected. This mode is particularly useful for Drop and Insert and Error Injection applications in which the board analyzes and may insert traffic running between two pieces of T1/E1 equipment. This feature also eliminates complex cabling.


Physical Interface  
T1/E1 Signal RJ48c Connectors – Four (4) or Eight (8) per board
PC Interface PCI Express X1 Lane
Compliant to PCI Express Base Specification v1.1

T1/E1 Line Interface  
Line Code format AMI, B8ZS (T1) or HDB3 (E1)
Framing Formats Unframed, D4 (T1), ESF (T1), ESF (J1), CAS (E1), FAS (E1), CRC4
BERT Pattern Generation Pseudorandom patterns: (63) 2ˆ6-1, (511) 2ˆ9-1, (2047) 2ˆ11-1, (32767) 2ˆ15-1, (1048575) 2ˆ20-1, (8388607) 2ˆ23-1, QRSS. T1 In-Band Loop Code Generation and Detection, Fixed patterns: All Ones, All Zeros, 1:1, 1:7, 3 in 24. Hardware Compliant: User pattern of up to 32 bits in length International, National & Extra Bits: User Defined (E1)
Display and Logging Bit Errors, Bit Error Rate, Error Seconds, Error Free Seconds, %EFS, Severely Error Seconds, % SES, Degraded Minutes, %Dmin, Loss Pattern Sync Count, Loss of Sync Seconds, Available Seconds, %Available Seconds, Unavailable Seconds, Bipolar Violations, BPV Rate, BPV Seconds, BPV Free Seconds, Frame Errors, FE Rate, FE Seconds, FE Free Seconds, with Detailed logging into disk file.

Resync In Progress, Loss of Signal, Blue Alarm, Change of Frame Alignment, Bipolar Violation, Frame Error, Carrier Loss, Yellow Alarm, Out of Frame Events Counter, Error Super frame Counter, Bipolar Violations, Remote Alarm, Distant Multiframe Alarm, Signaling All Ones, CAS Multiframe Error, CRC4 Error.
Drop and Insert Any Contiguous set of digital timeslots and/or audio input
Facility Data Link T1 ESF Mode: Transmit/Receive Messages, Bit-Oriented Messages, and files.
Loopbacks Normal (Outward and Inward)
Cross-Port Transmit Loopback
Cross-Port Through Loopback

T1/E1 Interface Hardware Compliant:
ANSI: T1.403.1995, T1.231-1993, T1.408
AT&T: TR54016, TR62411
ITU: G.703, G.704, G.706, G.736, G.775, G.823, G.932, I.431, O.151, Q.161
ITU-T: Recommendation I.432-03/93 B-ISDN User-Network Interface-Physical Layer Specification
ETSI: ETS 300 011, ETS 300 166, ETS 300 233, CTR12, CRT4
Japanese: JTG.703, JTI.431, (Future enhancement - JJ-20.11 - CMI Coding Only)
T1 Output Level T1: 3.0V Base to Peak Selectable 0-655Ft Pulse Equalization Setting
E1 Output Level E1: 3.0V ±0.3V Base to Peak
Line Build-Out Selections 0dB, -7.5dB, -15dB, -22.5dB for T1 only
Tx Capability DSX-1 Outputs (to 655 feet)
Alarm Insertion Blue, Yellow, Remote, Distant Multiframe, Bit 7 Zero Suppression
D4 Yellow: 1 in S bit of frame 12
Carrier Loss
Error Insertion BPV, Bit Error, Frame Error, CRC Errors, Burst Frames, Fixed Error Rate, Random Error Rate, auto logic from 10-2 to 10-9 for selectable 56K or 64Kps channels.
Internal Clock Specification Standard: ± 3ppm
Optional: ± 1ppm
Output Clock Source / Synchronization Options Internal, Recovered
Frequency offset OctalE1: +\- 615 Hz
OctalT1: +\- 464 Hz

Input Impedance 100 ohms for Terminate and monitor (T1)
120 ohms for Terminate and monitor (E1)
>1K ohms for Bridge
Terminations Terminate, Monitor, Bridge
T1 Input Frequency 1.544 MHz ± 20 Khz
E1 Input Frequency 2.048 Mhz ± 20 KHz
Frequency Measurement ± 1ppm
Error Detection Frame Error, CRC Error, CAS Mulitframe Error, BPV Error, Logic Error, Frame Alignment Error
  • 10 or 24 bits for sync time
  • 2/4, 2/5, or 2/6 frame bit in error frame select
  • Frame error bit corruption for 1 or 3 frame bits
  • E-Bit Error
  • Line Code Violation
  • Path Code Violation
Alarm Detection

D4 Yellow Alarm, ESF Yellow Alarm
 Hardware Compliant: J1 Yellow Alarm

Input Range
  • 0 to 36 dB (Long haul)
  • Monitor
  • Bridge
  • 26 dB +/- 2.5dB
  • 0 to 43 dB (Long haul)
  • Monitor
  • Bridge

  • 26 dB +/- 2.5dB
Intrinsic Jitter Jitter Tolerance: Meets AT&T TR 62411 (Dec. 90)and Meets ITU-T G.823
Jitter Transfer: Meets AT&T TR 62411 (Dec. 90)

PCM Interface  
Transmit Synthesized Tone: 15 Hz to 3975 Hz selectable in 1Hz steps, +3.0 dBm to -40 dBm in 0.1 steps selectable, Frequency sweep.

Dual Tone: Single or any combination of tones. Supervision: User defined states of A, B, (C, D) bits.

Signaling: DTMF/MF Dialing Digits, ISDN, MFC-R2

File Playback: User created or recorded file.

Special Codes: Milliwatt Codes, CSU Loop Up/Down Codes.
Receive Displays for All Channels: Signaling Bits, Power Level, Frequency, and Data.

Graphical displays: Oscilloscope, Spectral, Spectrogram, Signal-to-Noise

Signaling: DTMF/MF Dialed Digit Detection and Analysis, ISDN, MFC-R2

Recorder: Record Full/Fractional T1/E1/J1 Timeslots to hard disk file.

Propagation Delay Simulation Up to 2 Seconds
Precision Delay Measurement Up to 8 Seconds

Physical Dimensions  
Main Board 7.7 inches x 4.4 inches
PCIe X1 Connector Interface to PC
Daughter Board 3.8 inches x 4.2 inches
Without PC Interface

Hardware Requirement

Available with user-friendly GUI for Windows® 7 / 8 operating systems with support for almost all existing T1 E1 Analyzer applications including Comprehensive Analysis / Emulation of Voice, Data, Protocol, Analog, Digital, and Echo Testing.

* Specifications subject to change without notice.

Buyer's Guide

Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's Guide, which the software will be running on. Therefore, XX can either be HDT, HDE, HUT, HUE, UTA, UEA, ETA, or EEA depending upon the hardware.

Item No. Item Description
QuadXpress T1E1 Main Board (Quad Port – requires additional licenses)
QuadXpress T1E1 Daughter Board (Quad Port – requires FTE001 Main Board and additional licenses)
Basic Software for T1 (zero dollar, but required with appropriate licenses)
Basic Software for E1 (zero dollar, but required with appropriate licenses)
Eight Port License for E1
Eight Port License for T1
Four Port License for E1
Four Port License for T1
Two Port License for E1
Two Port License for T1
  Related Hardware/Software
XUT001 XUE001
Dual T1 E1 Express (PCIe) Boards (requires additional licenses)
Dual T1 E1 Express Card Basic T1 Software (includes xx600, xx605)
Dual T1 E1 Express Card Basic E1 Software (includes xx600, xx605)
Dual Laptop T1/E1 Hardware USB Base Unit
Basic Laptop T1 Software
Basic Laptop E1 Software
High Stability Internal Clock Option
HD Universal Dual T1/E1 Card
HD Universal Card Basic T1 Software
HD Universal Card Basic E1 Software
High Stability Internal Clock Option
tProbe™ T1 E1 Base Unit
tProbe™ Basic T1 Software
tProbe™ Basic E1 Software
High Stability Internal Clock Option
For Buyer’s Guide details on related software for Octal/Quad T1 E1 board, refer to this webpage.

*Specifications are subjected to change

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