Transcript
ADCP-61-048 • Issue 3 • September 2000
Model E2048-00A E1 Dual Intraoffice Repeater User Manual
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Model E2048-00A E1 Dual Intraoffice Repeater Content
Page
INTRODUCTION .......................................................................... 2 Revision History ..................................................................... 2 Trademark Information ................................................................ 2 Admonishments ..................................................................... 2 1
DESCRIPTION ....................................................................... 3
2
SPECIFICATIONS..................................................................... 5
3
INSTALLATION ...................................................................... 5 3.1
1085623 Rev A
Wiring Connections ............................................................. 5
3.2
Setting Equalizer Switches ........................................................ 6
3.3
Installing Repeater ............................................................. 7
4
OPERATION ........................................................................ 7
5
CUSTOMER INFORMATION AND ASSISTANCE ................................................. 8
Page 1 © 2000, ADC Telecommunications, Inc.
ADCP-61-048 • Issue 3 • September 2000
INTRODUCTION This manual provides a description of the Model E2048-00A E1 Dual Intraoffice Repeater, and the installation and operating procedures. The E1 Dual Intraoffice Repeater operates at the E1 (CCITT) bit rate of 2.048 Mbps and is designed to operate over 120-ohm twisted pair cable. The E1 Dual Intraoffice Repeater consists of a single plug-in printed circuit board with an attached front panel. The model number of the repeater is printed on the front panel for identification purposes. A single red LED is the only visual indicator on the repeater front panel. Switches for setting the equalization networks are mounted on the printed circuit board. Each repeater occupies one mounting position in any of the following 4-inch ADC repeater mounting chassis: • Model IOR-MA4280/4285 (28 positions) • Model M1544-254/255 (25 positions) • Model M1544-200 (14 positions)
Revision History ISSUE
DATE
Issue 1
01/1993
Original.
REASON FOR CHANGE
Issue 2
01/1996
Reissued to cover the Model E2048-00A E1 Dual Intraoffice Repeater.
Issue 3
09/2000
Update to current format standards.
Trademark Information ADC and ADC Telecommunications are registered trademarks of ADC Telecommunications, Inc.
Admonishments Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment. An admonishment identifies a possible hazard and then explains what may happen if the hazard is not avoided. The admonishments — in the form of Dangers, Warnings, and Cautions — must be followed at all times. These warnings are flagged by use of the triangular alert icon (seen below), and are listed in descending order of severity of injury or damage and likelihood of occurrence. Danger: Danger is used to indicate the presence of a hazard that will cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Warning: Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Caution: Caution is used to indicate the presence of a hazard that will or can cause minor personal injury or property damage if the hazard is not avoided.
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ADCP-61-048 • Issue 3 • September 2000
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DESCRIPTION The E1 Dual Intraoffice Repeater regenerates any standard E1 (2.048 Mbps) signal. Each Dual Intraoffice Repeater consists of a pair of signal regenerators on a single printed circuit board. Depending on the mode of operation required, the two regenerators may be configured to operate in the same direction or in opposite directions. A functional block diagram of the E1 Dual Intraoffice Repeater is shown in Figure 1. An artificial line at the repeater input provides shaped line loss for an input signal level of 0 to –27 dB relative to the DDF (Digital Distribution Frame) signal level. The repeater output provides the standard E1 signal level up to a distance of 200 meters (655 feet). The output of each regenerator may be set to compensate for various distances. Selectable equalization networks correct for the following distances over ABAM or equivalent gauge (120-ohm twisted pair) cable: • 0 to 67 meters (0 to 220 feet) • 67 to 134 meters (220 feet to 440 feet) • 134 to 200 meters (440 to 655 feet) +V 3 ALM F LED POWER SUPPLY .5 AMP –48 Vdc CHASSIS GROUND C EQUALIZER NETWORK SWITCH 1 T1
T 5
T2 2 T1
INPUT
ART LINE
REGEN A
OUTPUT 1 R1
R 4
SW 1 (0-67)
SW 2 (67-134)
SW 3 (134-200)
EQUALIZER NETWORK SWITCH 2 T4
T3
E T
T1 B REGEN B
OUTPUT
ART LINE
R1 A
INPUT D R
SW 3 (134-200)
SW 2 (67-134)
SW 1 (0-67)
1226-A
Figure 1. Model E2048-00A E1 Dual Intraoffice Repeater
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ADCP-61-048 • Issue 3 • September 2000
The repeater is protected with a separate fuse. If a fuse operates, a red LED on the repeater front panel lights to indicate that an alarm condition exists. Local alarm surveillance equipment may be connected in either of two ways. A relay alarm board, located on the repeater mounting chassis, provides two sets of Normally Open (NO) dry contact alarm terminals for local alarm surveillance equipment. If a fuse operates, the NO relay alarm board contacts close. The relay alarm board may also be bypassed. Instead of the relay alarm board, the alarm surveillance equipment may be connected to an alarm pin located on the repeater backplane connector. If a fuse operates, –48 Vdc battery is placed on the designated alarm pin. The E1 Dual Intraoffice Repeater is typically used in DDF applications where the crossconnect distance between bays exceeds 26 meters (85 feet) but is less than 400 meters (1310 feet) as shown in Figure 2. The T1 repeater can also be used in DDF applications where the distance between a DDF and a network element exceeds 200 meters (655 feet) but is less than 600 meters (1965 feet) as shown in Figure 2. E1 DUAL I/O REPEATER
DDF
UP TO 200 METERS (655 FEET)
UP TO 200 METERS (655 FEET)
DDF
400 METERS MAXIMUM
DDF TO DDF E1 DUAL I/O REPEATER
DDF
UP TO 200 METERS (655 FEET)
DDF LEVEL
UP TO 200 METERS (655 FEET)
UP TO 200 METERS (655 FEET)
MUX OR DIGITAL SWITCH
600 METERS MAXIMUM
DDF TO NETWORK ELEMENT
Figure 2. E1 Dual Office Repeater Applications
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SPECIFICATIONS The specifications for the E1 Dual Intraoffice Repeater are listed in Table 1. Table 1. Specifications PARAMETER
SPECIFICATION
REMARKS
Input/Output Impedance
120 ohms
Nominal at 1024 kHz
Input Signal Level
0 to –27 dB
Shaped line loss relative to DDF level (3 V peak)
Input Signal Frequency
2.048 Mbps ± 200 bps
Circuit
Output Signal
Output Signal Equalizer Settings
Meets CCITT G.703 for a range of up to 200 meters (655 feet) 0 to 67 meters (0 - 220 feet) 67 to 134 meters (220 - 440 feet) 134 to 200 meters (440 - 655 feet)
Power
Supply Voltage
–42 to –56 Vdc
Supply Current
35 mA maximum
Fuse
0.5 A fuse (GMT Type)
Environmental
Operating Temperature
0°C to + 50°C (+32°F to 122°F)
Storage Temperature
–40°C to +70°C (–40°F to + 158°F)
Operating Humidity
10 to 90%
No condensation
Storage Humidity
5 to 95%
No condensation
Physical
Dimensions
3
25.7 × 9.4 × 1.5 cm (10.1 × 3.7 × 0.6 inches)
INSTALLATION Installation consists of connecting the power, circuit, and alarm leads; setting the equalizer network switches; and inserting the repeater into the mounting chassis.
3.1 Wiring Connections Wire connections are made at the rear of the repeater mounting chassis. Each repeater plugs into a backplane connector to which the circuit, power, and alarm leads must be connected. The pin designations for the repeater backplane connector, as viewed from the rear of the mounting chassis, are shown in Figure 3. The alpha pin designations refer to the column of terminals on the right side of the backplane connector. The numeric pin designations refer to the column of terminals on the left side of the backplane connector. Refer to the User Manual that is provided with the repeater mounting chassis for the correct wiring connections for the power, circuit, and alarm leads.
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ADCP-61-048 • Issue 3 • September 2000
-48 V
6
F
ALARM
T
5
E
T
R
4
D
R
+V (GND)
3
C
SHIELD (OPTIONAL)
T1
2
B
T1
R1
1
A
R1
INPUT REGENERATOR A
OUTPUT REGENERATOR A
INPUT REGENERATOR B
OUTPUT REGENERATOR B
1229-A
Figure 3. Wiring Connections
3.2 Setting Equalizer Switches The output of each regenerator is corrected for distance by setting a pair of selectable equalizer switches. The two 3-position switches, shown in Figure 4, insert the equalizer networks into the output of the indicated regenerator. The correct selection is determined by the cable (0.64 mm - 22 AWG) length between the repeater and the DDF point of interconnection (POI). Selectable distances are from 0 to 67 meters, 67 to 134 meters, and 134 to 200 meters (0 to 220 feet, 220 to 440 feet, and 440 to 655 feet). The repeater is factory set for 0 to 67 meters (0 to 220 feet). To set the equalizer switches, determine the cable distance from the repeater to the point of interconnection for each regenerator (A and B). Refer to Figure 5 for the switch handle settings that correspond to the cable distances. Locate switches 1 and 2 on the printed circuit board and place the switch handles in the positions specified. Switch 1 selects the output for regenerator A. Switch 2 selects the output for regenerator B. SWITCH 1 REGENERATOR A
F1 T1 061
T2
O N
1
2
3
O N
1
2
3
SWITCH 2 REGENERATOR B
Figure 4. Equalizer Switches - Model E2048-00A
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0 - 220' 0 - 67 m
220 - 440' 67 - 134 m
440 - 655' 134 - 200 m
PLACE SWITCH HANDLES AS SHOWN FOR SPECIFIED CABLE DISTANCE
1960-A
Figure 5. Equalizer Switch Settings
3.3 Installing Repeater The repeater is installed by inserting it fully into the designated mounting position in the mounting chassis. Channel guides assure proper alignment of the card and positive connection of the contacts. Warning: To prevent electrical shock, never install repeater equipment in a wet location or during a lighting storm. When installing or modifying telephone lines, disconnect lines at the network interface before working with uninsulated lines or terminals. Caution: Observe precautions for handling electrostatic sensitive devices such as printed circuit boards. To install, align the edges of the printed circuit board with the mounting chassis channel guides. Carefully push the repeater into the chassis until it is firmly seated. If there is excessive resistance, remove the repeater and check for improper alignment or obstructions. Power, circuit, and alarm connections are established by the contacts at the rear of the printed circuit board.
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OPERATION Operation of the repeater is initiated as soon as it is installed in the mounting chassis and power is applied. If a fuse operates while the repeater is in service, a red LED on the front panel will light to indicate that an alarm condition exists. To restore service, remove and replace the repeater with a new unit. Set the equalizer switches and install repeater in mounting chassis as described in the installation section. Once a fuse has operated, the repeater must be replaced. If the repeater is still under warranty, refer to the Customer Service section for return material information.
Page 7 © 2000, ADC Telecommunications, Inc.
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CUSTOMER INFORMATION AND ASSISTANCE For customers wanting information on ADC products or help in using them, ADC offers the services listed below. To obtain any of these services by telephone, first dial the central ADC telephone number, then dial the extension provided below. The central number for calls originating in the U.S.A. or Canada is 1-800-366-3891. For calls originating outside the U.S.A. or Canada, dial country code “1” then dial 612-946-3000. Sales Assistance Extension 63000
• Quotation Proposals • Ordering and Delivery • General Product Information
Systems Integration Extension 63000
• • • • • • •
Complete Solutions (from Concept to Installation) Network Design and Integration Testing System Turn-Up and Testing Network Monitoring (Upstream or Downstream) Power Monitoring and Remote Surveillance Service/Maintenance Agreements Systems Operation
BCG Technical Assistance Center Extension 63475 E-Mail:
[email protected]
• • • • • •
Technical Information System/Network Configuration Product Specification and Application Training (Product-Specific) Installation and Operation Assistance Troubleshooting and Repair
Product Return Department Extension 63748 E-Mail:
[email protected]
• ADC Return Authorization number and instructions must be obtained before returning products.
Product information may also be obtained using the ADC web site at www.adc.com or by writing ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, MN 55440-1101, U.S.A.
Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period. This publication may be verified at any time by contacting ADC’s Technical Assistance Center at 1-800-366-3891, extension 63475 (in U.S.A. or Canada) or 612-946-3000 (outside U.S.A. and Canada), or by writing to ADC Telecommunications, Inc., Attn: Technical Assistance Center, Mail Station #71, P.O. Box 1101, Minneapolis, MN 55440-1101, U.S.A.
© 2000, ADC Telecommunications, Inc. All Rights Reserved Printed in U.S.A.
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