Telebyte 458-LM-A8-18A User manual
Model 458-LM-A8-18A
Local Loop Simulator
0315-0351 Rev. B
Date of Publication: 03/05/2019
“Results You Can Count On”
Customer Support
Thank you for your purchase of the Telebyte Model 458-LM-A8-18A Local Loop Simulator,
featuring 8 channels. The convenient plug-in line module simulates 26 AWG PIC as specified
in T1.417.
Contact Information:
Telephone E-mail/Internet
Fax: 631-385-8184 www.telebytebroadband.com
Mail
Telebyte, Inc.
355 Marcus Blvd
Hauppauge, NY 11788
Customer Care
Warranty
One-year Warranty
•Telebyte will furnish parts and labor for the repair or replacement of products found by Telebyte to be defective
in material or workmanship during the warranty period.1
Extended Customer Care
Refer to the Customer Care section of the Telebyte web site for the most current information on extended
warranty and calibration contracts 2,3,4:
http://www.telebytebroadband.com/customercare.html
Disclaimer of Warranties and Other Terms and Conditions
1TELEBYTE, INC. warrants its broadband simulation equipment to be free from defects in material and workmanship, under normal and proper use
and in its unmodified condition, for 12-months, starting on the date it is delivered for use. TELEBYTE’S sole obligation under this warranty shall be to
furnish parts and labor for the repair or replacement of products found by TELEBYTE to be defective in material or workmanship during the warranty
period. Warranty repairs will be performed at the point of manufacture. Equipment approved for return for warranty service shall be returned F.O.B.
TELEBYTE factory and will be redelivered by TELEBYTE freight prepaid, except for non-continental U.S.A. locations. These deliveries will be sent
COD freight and import/export charges.
2 The customer is responsible for freight and customs charges when shipping products to and from Telebyte for calibration services.
3 You must purchase the extended warranty at the time of purchase or during the initial warranty period.
4 You must purchase the calibration contract at the time of purchase or during the initial warranty period. The above warranty is in lieu of all other
warranties, expressed or implied, statutory or otherwise, including any implied warranty of merchantability or fitness for a particular purpose.
TELEBYTE shall not be liable for any damages sustained by reseller or any other party arising from or relating to any equipment failure, including but
not limited to consequential damages, nor shall TELEBYTE have any liability for delays in replacement or repair of equipment.
Equipment Returns
Out of warranty equipment may be returned, prepaid, to the Hauppauge, N.Y.
customer service facility. Return shipping charges will be billed to the customer.
The repaired unit will have a 90-day warranty. In those cases where "no trouble"
is found, a reduced charge will be billed to cover handling, testing, and
packaging. Whether in or out of warranty, a Return Material Authorization
number (RMA) is required and may be obtained by going to
www.telebytebroadband.com and opening a technical support case.
Please be sure to reference the RMA number on the outside container.
Table of Contents
1.0 Introduction ..................................................................................................................................1-1
2.0 Specifications...............................................................................................................................2-1
2.1 458-LM-A8-18A .....................................................................................................................2-1
2.2 458-3SLB ..............................................................................................................................2-1
2.3 458-CC-16/458-CM ...............................................................................................................2-2
3.0 Control..........................................................................................................................................3-1
3.1 Remote Commands...............................................................................................................3-1
3.2 458 Universal Graphical User Interface.................................................................................3-1
3.3 LCD Display/Front Panel .......................................................................................................3-2
Model 458-LM-A8-18A Local Loop Simulator Page 1-1
1.0 Introduction
The Model 458-LM-A8-18A Local Loop Simulator simulates 26 AWG PIC as specified in
T1.417. This plug and play line module provides eight channels with loop lengths from 0 to
15,000 ft, in 1,000-ft increments.
Features:
•Simulates 26 AWG PIC as specified in ANSI T1.417
•Bandwidth DC to 18 MHz
•Ideal for testing ADSL, ADSL2, ADSL2+, ADSL2++, VDSL, VDSL2
(supports up to Profile 17a) modems/DSLAMs
•8 channels per line module
•Loop lengths programmable from 0 to 15,000 ft in 1,000-ft increments
•Plugs into our Model 458-CC-16 (16-slot) or 458-3SLB (3-Slot) chassis
•Channel-to-Channel isolation up to 90 dB
The Model 458-LM-A8-18A provides 8 channels of loop simulation in one convenient module.
.
Model 458-LM-A8-18A Local Loop Simulator Page 2-1
2.0 Specifications
2.1 458-LM-A8-18A
Product Specifications 458-LM-A8-18A
Simulation
•Accurately simulates attenuation and impedance
•Full bidirectional operation at all specified frequencies
•26 AWG PIC as specified in ANSI T1.417
Bandwidth
DC to 18 MHz
Attenuation Accuracy
(when source and load
impedances are 100 ohms)
•MAE < 1 dB 25 kHz to 18 MHz
•+/- 1 dB channel-to-channel uniformity
Maximum Attenuation
90 dB
Impedance Accuracy
Typically +/- 10% 25 kHz to 18 MHz
Maximum Voltage Tip –
Ring
200 V
Maximum Current
130 mA
Connectors
8 RJ-45’s on front, 8 RJ-45’s on back
2.2 458-3SLB
Product Specifications (Chassis and Control Module)
Controls
Keypad for setting loop lengths and IEEE-488 address, RS-232, or
Ethernet communication parameters.
Indicators
Backlit LCD display of line length and set up parameters.
Power
88 to 264 VAC, 50 or 60 Hz
Size
[2U] 19 in W x 22 in D x 3.47 in H (482.6 mm W x 558.8 mm D x
88.1 mm H)
Environmental
Operating: +32 F to +122 F (0 to +50 degrees C)
Storage: 0 to 95% relative humidity (non-condensing)
Remote Control
Connectors
RS-232: DB9 female (DCE); GPIB:IEEE488 24-pin connector.
Ethernet: RJ-45
Plug-In Compatibility
Accepts one, two or three 458 Line Modules or one 458-RT
Model 458-LM-A8-18A Local Loop Simulator Page 2-2
2.3 458-CC-16/458-CM
Product Specifications 458-CC-16 (16-Slot Chassis) & 458-CM (sold separately)
Controls
Keypad for setting loop lengths and IEEE-488 address, RS-232, or
Ethernet communication parameters.
Indicators
Backlit LCD display of line length and set up parameters.
Power
100 - 240 VAC, 50 or 60 Hz
Size
[7U] 19 in W x 22 in D x 12.22 in H
(482.6 mm W x 558.8 mm D x 310.4 mm H)
Environmental
Operating: +32 F to +122 F (0 to +50 degrees C)
Storage: 0 to 95% relative humidity (non-condensing)
Remote Control
Connectors
RS-232: DB9 female (DCE); GPIB:IEEE488 24-pin connector.
Ethernet: RJ-45
Plug-In Compatibility
Accepts 1-16 458 Line Modules
Specifications are subject to change without notice. Made in USA.
➢Detailed information about the operation of the 458-3SLB and 458-CC-16/458-CM can be
found in the reference manuals for those products. Only information unique to the 458-LM-
A8-18A is provided in this manual.
Model 458-LM-A8-18A Local Loop Simulator Page 3-1
3.0 Control
The Model 458-LM-A8-18A can be controlled three ways: via RS-232 and IEEE488 Remote
Commands, our 458 Universal GUI interface or the push buttons and LCD Display on the front
panel of our 458-3SLB or 458-CM.
3.1 Remote Commands
Please refer to the manuals for the 458-3SLB or 458-CC-16/458-CM for remote commands
common to many line modules, including the 458-LM-A8-18A.
3.2 Graphical User Interface
➢Refer to the 458 Universal Graphical User Interface manual for more information.
Model 458-LM-A8-18A Local Loop Simulator Page 3-2
3.3 LCD Display/Front Panel
Basic Operation
Make selections by pushing the UP, DOWN, LEFT and RIGHT arrow buttons on the front panel.
The LCD Display shows the choices made. Refer to the chassis manual for additional details.
Step One –Select Slot
•Navigate to the desired slot in the 458-3SLx (3-Slot) Chassis or 458-CC16/458-CM
(16-Slot) Chassis using the UP or DOWN arrows.
Step Two –Select Increment
•Step through the allowable lengths for the current slot using the LEFT or RIGHT arrow
buttons. The length will increment in 1,000-ft steps.
Table of contents
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