Quick Reference Guide - Internal Switches & Remote Connector
Last updated
Last updated
Bit 1
Bit 2
Bit 3
Bit 4
Telephone Network
OFF
OFF
OFF
OFF
USA, Canada
OFF
OFF
OFF
ON
Japan, low voltage networks
OFF
OFF
ON
OFF
FCC-compliant countries
OFF
OFF
ON
ON
CRT21, Europe (real line impedance)
OFF
ON
OFF
OFF
Custom country configuration
OFF
ON
OFF
ON
Custom country configuration
OFF
ON
ON
OFF
Custom country configuration
OFF
ON
ON
ON
Europe (complex line impedance)
ON
OFF
OFF
OFF
Custom country configuration
ON
OFF
OFF
ON
Custom country configuration
ON
OFF
ON
OFF
Custom country configuration
ON
OFF
ON
ON
Reserved for future use
ON
ON
OFF
OFF
Reserved
ON
ON
OFF
ON
Reserved
ON
ON
ON
OFF
Reserved
ON
ON
ON
ON
Reserved
Bit 5
Bit 6
Bit 7
Bit 8
CPTD Signal Characteristics
OFF
OFF
OFF
OFF
U.S. dial tone ("precise" dial tone)
OFF
OFF
OFF
ON
U.S. re-order signal ("fast busy" tone)
OFF
OFF
ON
OFF
WORLD, single frequency dial tone
OFF
OFF
ON
ON
WORLD, re-order, ON = 155 - 550,
OFF = 155 - 550 ms
OFF
ON
OFF
OFF
WORLD, re-order, ON = 250 - 1200,
OFF = 250 - 1200 ms
OFF
ON
OFF
ON
WORLD, multi-tone dial tone
OFF
ON
ON
OFF
WORLD, multi-tone dial tone
OFF
ON
ON
ON
WORLD, pulse dial tone, ON = 150 - 350,
OFF = 450 - 1100 ms
ON
OFF
OFF
OFF
WORLD, pulse dial tone, ON = 100 - 250,
OFF = 200 - 400 ms
ON
OFF
OFF
ON
Reserved for future use
ON
OFF
ON
OFF
Reserved
ON
OFF
ON
ON
Reserved
ON
ON
OFF
OFF
Reserved
ON
ON
OFF
ON
Reserved
ON
ON
ON
OFF
Reserved
ON
ON
ON
ON
Call Progress Tone Detection (CPTD) feature disabled
Pin
Direction
Unit
Function
1
GPIO Ground
2
GPI
Hybrid 1
Hybrid ON
3
GPI
Hybrid 1
Hybrid OFF
4
GPI
Hybrid 2
Hybrid ON
5
GPI
Hybrid 2
Hybrid OFF
6
GPO
Hybrid 1
Line Ringing Indicator
7
GPO
Hybrid 1
Hybrid In-use Indicator
8
GPO
Hybrid 2
Line Ringing Indicator
9
GPO
Hybrid 2
Hybrid In-use Indicator