Avocent Cyclades-PR4000 User Manual
Page 33
Cyclades-PR4000
Chapter 4 - Step-By-Step Instructions for Common Applications
33
line using the controller. Both CAS and CCS signaling are explained. Which one is used will depend on the
services offered by the telephone system.
Menu CONFIG=>CONTROLLER=>T1/E1
Parameter
Example
Your Application
Frame Mode
This value is provided by the T1/E1 line provider.
For T1, ESF (Extended Super Frame, the most common)
and
D4 are the options. For E1, CRC4 (the most
common) and
Non-CRC4 are the options.
Line Code
This value is provided by the T1/E1 line provider. For T1,
B8ZS (Bipolar 8 Zero Substitution, the most common) and
AMI (Alternate Mark Inversion) are used. For E1, the
choices are HDB3 (High-Density Bipolar) and AMI.
Signaling Mode
CCS for ISDN-PRI (digital or analog remote access).
CAS for analog, modem-based remote access (usually
used with telephone networks that do not support ISDN).
Clock Mode (CAS only)
Slave
Line Build Out
Applies only to T1. The T1 service provider should supply
this parameter.
Receiver Sensitivity
Short Haul
Companding Mode
This value is provided by the T1/E1 line provider.
A-law is usually used for E1 lines and u-law is usually
used for T1 lines.
Signaling Type
(CAS only)
Wink Start or Loop Start for T1 and R2 Digital ITU-T for
E1 are the options
Tone Signaling
CAS Only. This value is provided by the T1/E1 line
provider. DTMF is the most common for T1 and MFR2
Compelled is the most common for E1.
Country Signaling
Type ? to the options available for each country. This
value is provided by the T1/E1 line provider.
FIGURE 4.3 E1/T1 CONTROLLER MENU PARAMETERS