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22 Configuring the ICX-250 Switches
ADCP-62-023 Issue 1, September 1998
© 1998, ADC Telecommunications, Inc.
T1 INTERFACE:
T1 Interface
Frame Format
(see page 32)
S1
positions 1 and 2
Back D4 (SF)
ESF
TR-08
Selects the T1 frame format and
data link format to be either D4
(SF), ESF, or TR-08. (No data link
with D4).
T1 Interface
Line Code
(see page 32)
S1
position 3
Back AMI
B8ZS
Selects the line code on the T1
interface.
T1 Interface
T1 Clock
(see page 33)
S1
position 4
Back Line
Internal
Line: Clock for the T1 interface
will be recovered from the line
(receive signal).
Internal: Clock for the T1 interface
will be taken from an on-board
1.544 MHz clock meeting the
Stratum 4 requirements.
T1 Interface
CSU Loop Code
Recognition
(see page 34)
S1
position 5
Back Accept
Ignore
Accept: ICX-250 will respond to
network generated loop requests
that are received over the FDL.
Ignore: ICX-250 will ignore
network generated loop requests.
T1 Interface
Line Build Out
(see page 34)
S1
positions 6 and 7
Back 0 dB
–7.5 dB
–15.0 dB
Selects one of three line build
out options for short (–15.0 dB),
medium (–7.5 dB) and long (0 dB)
loops.
DATA PORTS:
Data Ports 1 and 2
Number of Timeslots
(see page 35)
S2 - dataport 2
positions 1, 2, 3, 4
and 5
S3 - dataport 1
positions 1, 2, 3, 4
and 5
Back 0
1, 2, 3, ....24
Selects the number of timeslots
that data from Data Port 1
and/or 2 will be mapped onto.
Data Ports 1 and 2
Starting Timeslot
(see page 37)
S2 - dataport 2
positions 6, 7, 8, 9
and 10
S3 - dataport 1
positions 6, 7, 8, 9
and 10
Back 0
1, 2, 3, ....24
Selects first T1 timeslot that data
from Data Port 1 and/or 2 will be
mapped.
Data Ports 1 and 2
Interface Type
(see page 38)
S2, S3
position 11
Back EIA530A
V.35
EIA530A: Ports 1 and/or 2 use
the EIA530A standard.
V. 35 : Ports 1 and/or 2 use the V.35
standard.
Data Ports 1 and 2
Data Rate
(see page 39)
S2, S3
position 12
Back 64 Kbps
56 Kbps
64Kbps: Ports 1 or 2 receive
and transmit data at a multiple
of 64 Kbps.
56Kbps: Ports 1 or 2 receive
and transmit data at a multiple
of 56 Kbps.
The bold highlighted selection under “Options” is the Factory Setting.
Function Switch
Switch
Location
Option Description