Nortel BCM50 2.0 Configuration Manual page 277

Table 81 Localization, DIP switch settings, specifications, and transmission parameters (Sheet 2 of 2)
Market
profile Localized
Mexico No (North American
based A-law)
New Zealand No (UK-based telephony
with Australian tones)
North America Yes
Poland Yes
United Yes
Kingdom
Table 82 Loop interface and call supervision parameters
Ringing
frequency
Market profile (Hz)
Australia 25
Bahrain 20
Canada 20
Caribbean 20
Global 20
Hong Kong 20
Ireland 25
Mexico 20
New Zealand 25
North America 20
Poland 25
United Kingdom 25
DIP Terminal
switch Input
setting impedance
Ω
North 600
America
Ω
UK 370 + (620
Ω
|| 310 nF)
Ω
North 600
America
Ω
Poland 600
Ω
UK 370 +
Ω
(620 ||
310 nF)
Loop interface
Loop
Current
Ringing Detect
amplitude Threshold
(Vrms) (mA)
65 18
65 18
65 18
65 18
65 18
65 18
65 18
65 18
65 18
65 18
65 18
65 18
Chapter 28 Market profile attributes
Transmission
Nominal
Network PCM
Input coding
Impedance scheme
Ω
600 A-law
Ω
300 + A-law
Ω
(1000 ||
220 nF)
Ω
600 mu-law
Ω
600 A-law
Ω
300 + A-law
Ω
(1000 ||
220 nF)
Loop Min. Min
current seize answer
limit duration duration
(mA) (ms) (ms)
32 200 50
32 150 25
32 150 25
32 150 25
32 150 25
32 150 25
32 200 50
32 150 25
32 200 50
32 150 25
32 180 80
32 200 50
Call supervision
Min/max Min
recall clear
duration duration
(ms) (ms)
30/150 1500
250/1100 1400
250/1100 1400
250/1100 1400
250/1100 1400
250/1100 1400
15/150 1500
250/1100 1400
15/150 1500
250/1100 1400
75/520 680
15/150 1500
Device Configuration Guide
277