Specifications

Connecting Cisco ATM Network Modules to the Network
ATM T3 and E3 Network Modules
3
Connecting Cisco ATM Network Modules to the Network
ATM-25 Network Module LEDs
Figure 3 shows ATM-25 network module LEDs.
Figure 3 ATM-25 Network Module LEDs
All network modules have an enable (EN) LED. The enable LED indicates that the module has passed
its self-tests and is available to the router. The ATM-25 network module has the additional LEDs shown
in Table 1.
ATM T3 and E3 Network Modules
ATM T3 and E3 network modules provide T3 and E3 ATM connectivity for high-bandwidth data
applications. There are three versions of these network modules: the ATM T3 Network Module, the ATM
E3 Network Module, and the ATM T3/E3 Network Module. See Figure 4, Figure 5 and Figure 6. These
network modules offer full support for multiprotocol encapsulation over ATM Adaptive Layer 5
(RFC 1483), classic IP over ATM encapsulation (RFC 1577), Point-to-Point Protocol (PPP) over ATM,
and LAN Emulation (LANE). Up to 1024 virtual circuits (VCs) are supported on the ATM T3/E3
network modules.
Figure 4 ATM Network Module with T3 Interface
EN
ATM 25Mbps
ATM-25
11708
TX
RX
ATM 0
Enable LED
ATM traffic
LEDs
Table 1 ATM-25 Network Module LEDs
LED Meaning
RX Module is receiving ATM traffic
TX Module is transmitting ATM traffic
EN
ATM
1A-T3
30546
SEE MANUAL BEFORE INSTALLING NETWORK MODULE
FERF OOF AIS
RCLK
RXTX
ATM 0