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Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009
Copyright © 2006-2009 Nortel Networks
Analog device specifications
This chapter provides a comparison of the specifications of the various analog
devices available for a BCM450 system
ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications
The following table shows the specifications for ATA2, ASM8, ASM8+, GASM,
and GASI.
Table 5 ATA2, ASM8, ASM8+, GASM, and GASI analog device specifications (1 of 3)
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
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