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Cisco 7100 Series VPN Router Installation and Configuration Guide
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Chapter 1 Overview
Cisco 7120 Series Overview
•
Loopbacks (except for X.21 DTE)
•
ATM-DXI, Frame Relay, High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP),
and Switched Multimegabit Data Service (SMDS) encapsulation
•
RFC 1406 (except for the Frac table)
Figure 1-5
shows the back of the Cisco 7120-4T1. Access to the interfaces is located at the back of the
router.
Figure 1-5
Cisco 7120-4T1—Back View
0
2
TD
TC
RD
RC
LB
CD
TD
TC
RD
RC
LB
CD
TD
EN
TC
RD
RC
LB
CD
SLOT 0
SLOT 1
5
I
CONS
FE
TC
RD
RC
LB
CD
TD
0 / 0
FE
ACT
0 / 1
AUX
7 1 2 0 - 4 T 1
ACT
LNK
0
LNK
1
PWR
SYS
RDY
18483
T1 WAN ports
LEDs
Console and
auxiliary ports
Modular port adapter
Service adapter
Fast Ethernet 0/0
Fast Ethernet 0/1
Power supply
Serial 1/3
Serial 1/2
Serial 1/1
Serial 1/0
PC Card
slots (covered)
Fixed LAN ports
LED