Nortel Networks BCM1000 Chapter 2 Telephony hardware 45, Table 6 Analog engineering specifications (Continued)

Chapter 2 Telephony hardware 45
Installation and Maintenance Guide
Ringing Voltage
(North America)
80 V rms ± 10% 55 V rms ± 10% 65 V rms ± 10% 65 V rms ± 10%
Ringing Voltage (Europe) 75 V rms ± 10% na 65 V rms ± 10% 65 V rms ± 10%
Loop Current 20 mA minimum 20 mA minimum 20 mA minimum 20 mA minimum
Loop Current (Poland) 32 mA minimum
Battery Feed voltage - 48 V dc ± 10% - 48 V dc ± 10% - 29 V dc ± 10% - 32 V dc ± 10%
FIC code OL13ABC na OL13B na
Ringer Equivalence
Number
3122
ATA2 to BCM loop
resistance (cable only)
135 ohms (800 m of
0.5 mm wire or 2,600
ft. of 24 AWG wire
na na na
Analog loop resistance on
terminal side for voice
applications (cable only)
1,300 ohms (7,200 m
of 0.5 mm wire or
26,000 ft. of 24 AWG
wire
250 ohms (1,538 m of
0.5 mm wire or 5,000
ft. of 24AWG wire)
200 ohms
(1,231 m of 0.5
mm wire or
4,000 ft. of 24
AWG wire
200 ohms (1,231 m
of 0.5 mm wire or
4,000 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 4,000
ft. of 24 AWG wire)
200 ohms
(1,231 m of 0.5
mm wire or
4,000 ft. of 24
AWG wire
Input impedance at Tip &
Ring
600 ohms 600 ohms 600 ohms 600 ohms
Return loss > 20 dB for 200 to
3,400 Hz (when
terminated with 600
ohms)
> 20 dB for 200 to
3,400 Hz (when
terminated with 600
ohms)
> 20 dB for 200
to 3,400 Hz
(when
terminated with
600 ohms)
> 20 dB for 200 to
3,400 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
Norstar ASM 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
0.5db ±1.0dB
Norstar ASM to BCM
loss 3.0 dB ± 1.0 dB
BCM to Norstar ASM
loss 0.5db ±1.0dB
Norstar ASM to
BCM loss 3.0
dB ± 1.0 dB
BCM to Norstar
ASM loss 0.5db
±1.0dB
Norstar ASM to BCM
loss 3.0 dB ± 1.0 dB
BCM to Norstar ASM
loss 0.5db ±1.0dB
Maximum units to install
per chassis
na 2/4 2/4 na
Note: The left value denotes the maximum number of modules that can be installed per
chassis under peak conditions where all ports go off hook simultaneously.
The right value denotes the maximum number of modules that can be installed per
chassis under average load conditions, where four ports are ringing and four ports are
in an active call.
Table 6 Analog engineering specifications (Continued)
Feature ATA2 ASM8 GASM8 Norstar ASM