Nortel Networks BCM50 User Manual
Page 47
Chapter 2 Introducing the BCM50 hardware
47
Installation and Maintenance Guide
The table
ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications
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