■
Clocking
■
Redundancy
■
Frame Relay logical interface support
■
Unique IP interface support for each PPP or Frame Relay PVC interface
■
HDLC
■
Fractional T3 (T3 only)
■
Line speeds of 45 Mbps (T3) and 34 Mbps (E3)
OCx/STMx/DS3-ATM Line Modules and 4xDs3 ATM I/O Modules
ERX-7xx models, ERX-14xx models, and the ERX-310 router support the
OCx/STMx/DS3-ATM line modules and 4xDS3 ATM I/O modules.
ERX-14xx models support up to twelve OCx/STMx/DS3-ATM line modules and twelve
4xDS3 ATM I/O modules, the ERX-7xx models support up to five of these line modules
and five corresponding I/O modules, and the ERX-310 router supports up to two of
these line modules and two corresponding I/O modules. There are four physical T3
(DS3) ports per I/O module. Each port uses two BNC connectors: one for the transmit
(TX) connection and one for the receive (RX) connection.
OCx/STMx/DS3-ATM line modules pair with 4xDS3 ATM I/O modules to support the
following:
■
Clocking
■
Redundancy
■
Frame Relay logical interface support
■
Unique IP interface support for each PPP or Frame Relay PVC interface
■
Line speeds of 45 Mbps
CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules
ERX-7xx models, ERX-14xx models, and the ERX-310 router support the CT3/T3-F0
line modules and CT3/T3 12 I/O modules.
The CT3/T3-F0 line module and CT3/T3 12 I/O module support both channelized and
unchannelized T3 operation. You can configure a mixture of channelized and
unchannelized ports on these modules. To configure these modules to support
unchannelized T3 operation, issue
no
“channelized” on page 51 . (See “Configuration
Tasks” on page 51
.
) For information about configuring channelized T3 ports, see
“Configuring T3 and E3 Interfaces” on page 45.
ERX-14xx models support up to twelve CT3/T3-F0 line modules and twelve CT3/T3
12 I/O modules, ERX-7xx models support up to five of these line modules and five
corresponding I/O modules, and the ERX-310 router supports up to two of these line
modules and two corresponding I/O modules. There are twelve physical T3 (DS3)
ports per I/O module. Each port uses two SMB connectors: one for the transmit (TX)
connection and one for the receive (RX) connection.
48
■
Platform Considerations
JUNOSe 10.0.x Physical Layer Configuration Guide
Содержание JUNOSE 10.0.X PHYSICAL LAYER
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