Nortel Networks BCM 1000 用户手册

Chapter 2 Documentation updates for BCM 4.0

BCM 4.0 for BCM1000 Installation and Maintenance Guide Addendum

This section should be removed.

The listed equipment, NetVision, Companion, and DECT, is not supported in BCM 4.0 (DECT is 
still supported in European markets).

The first two paragraphs should be removed and replaced with the following information:

You require a personal computer to run Element Manager. You use Element Manager to configure 
and manage the BCM system through a connection between your computer and the BCM system 
(either through the LAN or using an Ethernet crossover cable). To work with Element Manager, 
you require the correct version of Element Manager installed on your computer.

The computer you will use to run Element Manager must meet the following requirements:

•

Operating system: Windows 98SE, Windows 2000, Windows XP

•

RAM: minimum 256 MB (512 MB recommended)

•

Disk space: 150 MB

•

Browser: Internet Explorer (IE) 5.5 or IE 6.0 (recommended)

Input impedance at tip 
and ring

600 ohms

600 ohms

600 ohms

600 ohms

600 ohms

Return loss

> 20 dB for 200 
to 3400 Hz 
(when 
terminated with 
600 ohms)

> 20 dB for 200 
to 3400 Hz 
(when 
terminated with 
600 ohms)

> 20 dB for 200 
to 3400 Hz 
(when 
terminated with 
600 ohms)

> 20 dB for 200 
to 3400 Hz 
(when 
terminated with 
600 ohms)

> 20 dB for 200 
to 3400 Hz 
(when 
terminated with 
600 ohms)

Insertion loss on an 
internal call

ATA2 to BCM 
loss 3.0 dB 

±

 0.5 

dB

ATA2 to BCM 
loss 3.0 dB 

±

 0.5 

dB

ATA2 to BCM 
loss 3.0 dB 

±

 0.5 

dB

ATA2 to BCM 
loss 3.0 dB 

±

 0.5 

dB

ATA2 to BCM 
loss 3.0 dB 

±

 0.5 

dB

Insertion loss on an 
external call

ATA2 to BCM 
loss 2.2 dB +/- 
1.0 dB; BCM to 
ATA2 loss 0.5 dB 

±

 1.0 dB

ASM to BCM 
loss 3.0 dB +/- 
1.0 dB; BCM to 
ASM loss 0.5 dB 

±

 1.0 dB

ASM to BCM 
loss 3.0 dB +/- 
1.0 dB; BCM to 
ASM loss 0.5 dB 

±

 1.0 dB

ASM to BCM 
loss 3.0 dB +/- 
1.0 dB; BCM to 
ASM loss 0.5 dB 

±

 1.0 dB

ASM to BCM 
loss 3.0 dB +/- 
1.0 dB; BCM to 
ASM loss 0.5 dB 

±

 1.0 dB

MWI type (see Note)

Stutter tone

Stutter tone

Stutter tone/
/ Voltage MWI 
(CO: 120 V)

Stutter tone/
Reverse polarity/ 
Voltage MWI 
(CO: 120 V)

Stutter Tone/ 
Reverse polarity/
Voltage MWI
(PBX: 90 V)

Disconnect 
supervision types

N/A

N/A

OSI EIA/TIA 464 
section 
4.5.10.2.4/
4.5.10.2.5.1

OSI EIA/TIA 464 
section 
4.5.10.2.4/
4.5.10.2.5.1

N/A

Note: The MWI type depends on the country profile, and the MWI voltage shown is a maximum value.

Table 6   ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications (Sheet 2 of 2)