Cisco 7120 Series Manual do utilizador - Página 8
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Cisco 7120 Series Overview
Cisco 7120-T3
The Cisco 7120-T3 provides one high-speed, synchronous serial port that supports full-duplex operation
at T3 (45-Mbps) speeds. The Cisco 7120-T3 provides the following features:
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Figure 1-7
router.
Figure 1-7
Modular port adapter
5
I
EN
LED
Cisco 7100 Series VPN Router Installation and Configuration Guide
1-8
Integrated DSU functionality
16- and 32-bit CRCs
B3ZS line coding
Scrambling and bandwidth reduction
Loopbacks
ATM-DXI, Frame Relay, HDLC, SMDS, and PPP serial encapsulation
RFC 1213 and RFC 1407
shows the back of the Cisco 7120-T3. Access to the interfaces is located at the back of the
Cisco 7120-T3—Back View
Fast Ethernet 0/0
Service module
RCVR
XMTR
RCLK FERF RL
AIS OOF LL
LEDs
T3 WAN port
serial 1/0
Fast Ethernet 0/1
SLOT 0
SLOT 1
ACT
ACT
LNK
LNK
0
1
FE 0 / 0
FE
0 / 1
Fixed LAN ports
Console and
auxiliary ports
PC Card
slots (covered)
Chapter 1
PWR
0
SYS
CONS
AUX
RDY
2
7120 - T3
Power supply
Overview
78-6341-03