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Nortel Networks BCM50 User Manual

Page 47

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Chapter 2 Introducing the BCM50 hardware

47

Installation and Maintenance Guide

The table

ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications

on page 47

shows the specifications for ATA2, ASM8, GASM, and GASI.

Table 5 ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications (Sheet 1 of 2)

Specification

ATA2

ASM8

ASM8+

GASM

GASI

Ringing frequency
(North America)

20 Hz

±

1 Hz

20 Hz

±

1 Hz

20 Hz

±

1 Hz

20 Hz

±

1 Hz

20 Hz

±

1 Hz

Ringing frequency
(Europe)

25 Hz

±

1 Hz

25 Hz

±

1 Hz

25 Hz

±

1 Hz

25 Hz

±

1 Hz

25 Hz

±

1 Hz

Ringing voltage (North
America)

80 V rms

±

10%

55 V rms

±

10%

65 V rms

±

10%

65 V rms

±

10%

65 V rms

±

10%

Ringing voltage
(Europe)

75 V rms

±

10%

N/A

65 V rms

±

10%

65 V rms

±

10%

65 V rms

±

10%

Loop current

20 mA minimum

20 mA minimum

20 mA minimum

20 mA minimum

20 mA minimum

Battery feed voltage

–48 V dc

±

10%

–48 V dc

±

10%

–29 V dc

±

10%

–48 V dc

±

10%

–48 V dc

±

10%

FIC code

OL13ABC

N/A

N/A

N/A

N/A

Ringer equivalency
number

3

1

2

2

2

ATA2 to BCM50 loop
resistance (cable only)

135 ohms
(800 m of
0.5-mm wire or
2600 ft of
24-AWG wire)

N/A

N/A

N/A

N/A

Analog loop resistance
on terminal side for
voice applications
(cable only)

1300 ohms
(7200 m of
0.5-mm wire or
26000 ft of
24-AWG wire)

250 ohms
(1538 m of
0.5-mm wire or
5000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

Analog loop resistance
on terminal side for
data applications
(cable only)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

250 ohms
(1538 m of
0.5-mm wire or
5000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

200 ohms
(1231 m of
0.5-mm wire or
4000 ft of
24-AWG wire)

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 BCM50
loss 3.0 dB

±

0.5

dB

ATA2 to BCM50
loss 3.0 dB

±

0.5

dB

ATA2 to BCM50
loss 3.0 dB

±

0.5

dB

ATA2 to BCM50
loss 3.0 dB

±

0.5

dB

ATA2 to BCM50
loss 3.0 dB

±

0.5

dB

Insertion loss on an
external call

ATA2 to BCM50
loss 2.2 dB

±

1.0

dB; BCM50 to
ATA2 loss 0.5 dB

±

1.0 dB

ASM to BCM50
loss 3.0 dB

±

1.0

dB; BCM50 to
ASM loss 0.5 dB

±

1.0 dB

ASM to BCM50
loss 3.0 dB

±

1.0

dB; BCM50 to
ASM loss 0.5 dB

±

1.0 dB

ASM to BCM50
loss 3.0 dB

±

1.0

dB; BCM50 to
ASM loss 0.5 dB

±

1.0 dB

ASM to BCM50
loss 3.0 dB

±

1.0

dB; BCM50 to
ASM loss 0.5 dB

±

1.0 dB