Selecting hdsl parameters – ADC Campus-REX2 RS User Manual
Page 33
Chapter 2 - Configuring HDSL Parameters
Campus-REX2 RS Interface Card User Manual
21
Selecting HDSL Parameters
You can use the default HDSL setting for your Campus-RS unit (when also
using the default settings on the remote unit to which this unit connects)
which are:
•
standard for the HDSL operating mode
•
auto for the transceiver mode (determines which device is the master
or slave)
•
T1 for the HDSL rate
If you want to change any of these parameters, select one of the following
sections based on the HDSL operating mode you will use. Campus-RS offers
these two HDSL operating modes:
•
Standard mode (
) provides compatibility between a Campus-RS
product and an earlier Campus product (legacy Campus) that has a
HDSL interface including T1, E1, or 768:
–
for T1, the maximum transmission rate is 1.544 Mbps over 2 pairs
–
for E1, the maximum transmission rate is 2.048 Mbps over 2 pairs
–
for 768, the transmission rate is 768 kbps over 1 pair
•
Extended mode (
) provides a fractional rate selection between the
HDSL interfaces of two Campus-RS products. The rate is selectable as
follows:
–
for 1 pair in 64 kbps increments, starting at 128 kbps up to
2.304 Mbps
–
for 2 pair in 128 kbps increments, starting at 256 kbps up to
4.608 Mbps