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120
Chapter 11 Installing the analog terminal adapter
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Figure 50 ATA2 back view
Test insertion loss measurement
The maximum loss for ATA2 to Central Office (CO) configuration must not exceed 10 dB (see
Figure 51 on page 120
).
Figure 51 Insertion loss from the CO to the analog telephone
Measure the total insertion loss between the CO and analog device by using standard dial up test
lines with a transmission test set. For example, Hewlett-Packard 4935A Transmission Test Set.
To measure the insertion loss from the CO to the analog device
1
Establish a connection to the 1 mW, 1 kHz, CO service line with an analog telephone attached
to the ATA2.
2
Ensure that the analog port terminates correctly in 600 ohms:
•
Replace the analog telephone with the test set
Longitudinal balance to ground
50 dB
60 to 4,000 Hz
With IEEE 455-1976 test
Overload level
3 dB
Mounting keyhole slots
Analog telephone
ATA2
BCM50
BCM50 to ATA2
ATA2 to BCM50
10 dB Max
Cable loss
Central
Office
Содержание BCM50
Страница 1: ...Part No N0027152 01 08 April 2005 BCM50 Installation and Maintenance Guide ...
Страница 8: ...8 Task List N0027152 01 N0027152 01 ...
Страница 16: ...16 Contents N0027152 01 N0027152 01 ...
Страница 34: ...34 Chapter 1 Getting started with BCM50 N0027152 01 N0027152 01 ...
Страница 58: ...58 Chapter 2 Introducing the BCM50 hardware N0027152 01 N0027152 01 ...
Страница 70: ...70 Chapter 4 Determining DHCP server configuration and IP address N0027152 01 N0027152 01 ...
Страница 74: ...74 Chapter 5 Installing the BCM50 system N0027152 01 N0027152 01 ...
Страница 96: ...96 Chapter 8 Installing an expansion unit N0027152 01 N0027152 01 ...
Страница 116: ...116 Chapter 10 Installing telephones and peripherals N0027152 01 N0027152 01 ...
Страница 122: ...122 Chapter 11 Installing the analog terminal adapter N0027152 01 N0027152 01 ...
Страница 126: ...126 Chapter 12 Configuring the BCM50 system N0027152 01 N0027152 01 ...
Страница 132: ...132 Chapter 13 Using Telset Administration to set the basic parameters N0027152 01 N0027152 01 ...
Страница 148: ...148 Chapter 15 Using the Startup Profile to configure parameters N0027152 01 N0027152 01 ...
Страница 158: ...158 Chapter 17 Connecting the BCM50 system to the LAN and WAN N0027152 01 N0027152 01 ...
Страница 168: ...168 Chapter 19 Replacing the BCM50 system components N0027152 01 N0027152 01 ...
Страница 172: ...172 Chapter 20 Replacing a power supply N0027152 01 N0027152 01 ...
Страница 178: ...178 Chapter 21 Replacing a main unit N0027152 01 N0027152 01 ...
Страница 182: ...182 Chapter 22 Replacing a media bay module N0027152 01 N0027152 01 ...
Страница 214: ...214 Appendix E DTM wiring chart N0027152 01 N0027152 01 ...
Страница 220: ...220 Appendix G GATM wiring chart N0027152 01 N0027152 01 ...
Страница 224: ...224 Appendix H 4x16 wiring charts N0027152 01 N0027152 01 ...
Страница 240: ...240 Appendix K System region attributes N0027152 01 N0027152 01 ...
Страница 246: ...246 Index N0027152 01 N0027152 01 ...