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Cisco 7100 Series VPN Router Installation and Configuration Guide
78-6341-03
Chapter 1 Overview
Cisco 7140 Series Overview
Cisco 7140-2E3
The Cisco 7140-2E3 provides two high-speed, synchronous serial ports that support full-duplex
operation at E3 (34-Mbps) speeds. The Cisco 7140-2E3 provides the following features:
• Integrated DSU functionality
• 16- and 32-bit CRCs
• HDB3 line coding
• Scrambling and bandwidth reduction
• G.751 framing or bypass framing
• National service bits
• Loopbacks
• ATM-DXI, Frame Relay, HDLC, SMDS, and PPP serial encapsulation
• RFC 1213 and RFC 1407
Figure 1-17 shows the back of the Cisco 7140-2E3. Access to the interfaces is located at the back of the
router.
Figure 1-17 Cisco 7140-2E3—Back View
A
C
O
K
D
C
O
K
O
T
F
A
C
O
K
D
C
O
K
O
T
F
SLOT 0 SLOT 1
TXRX TXRX
EN
RCLK FERF RL
AIS OOF LL
RCLK FERF RL
AIS OOF LL
FE 0 / 0 FE 0 / 1
5
I
CONS
ACT
AUX
0
2
7140 - 2E3
ACT
LNK
0
LNK
1
PWR
SYS
RDY
Console and
auxiliary ports
Fixed LAN ports Power supplies
E3 WAN port
E3 WAN port
18494
LEDsLED
Modular port adapter
PC Card
slots (covered)
Service module
- Text Part Number: 78-6341-03 1
- CONTENTS 3
- Contents 4
- B System Specifications B-1 6
- C Cable Specifications C-1 6
- Audience 9
- 78-6341-03 10
- Installation Warning 10
- Document Organization 11
- Related Documentation 11
- Document Conventions 15
- Terms and Acronyms 17
- Obtaining Documentation 19
- Documentation Feedback 20
- Cisco.com 20
- Technical Assistance Center 20
- Cisco TAC Website 21
- Cisco TAC Escalation Center 21
- Overview 23
- Chapter 1 Overview 24
- Product Description 24
- Cisco 7120 Series Overview 27
- Cisco 7120-T3 30
- Cisco 7120-E3 31
- Cisco 7140 Series Overview 36
- Cisco 7140-2E3 38
- Cisco 7140-8T 42
- Field-Replaceable Units 44
- Port Adapters 45
- RESETSM-ISM 46
- ENCRYPT/COMP 47
- VPN Acceleration Module (VAM) 48
- Flash Disks 49
- SDRAM Memory 50
- Functional Overview 52
- Slot 4Slot 5 Slot 3 53
- MAC Addresses 54
- Online Insertion and Removal 55
- Network Processor Card 56
- FrontBack 57
- System LEDs and Reset Button 60
- Environmental Monitoring 61
- Fan Failures 64
- Preparing for Installation 65
- Shipping Container Contents 66
- Safety Guidelines 66
- Chassis Lifting Guidelines 69
- Site Requirement Guidelines 70
- Rack-Mounting Guidelines 70
- Power Connection Guidelines 73
- Plant Wiring Guidelines 74
- Ethernet Connections 76
- WAN Connections 76
- Console Port Connections 77
- Auxiliary Port Connections 77
- Rack-Mounting the Chassis 80
- Attaching the Brackets 81
- Chassis grounding receptacles 84
- Grounding wire 84
- Grounding lug 84
- Connecting to the Network 85
- 7140 - 2AE3 86
- To T3 network 89
- Serial 1/0 Serial 2/0 89
- Cisco 7140-2AE3 90
- To ATM T3 network 91
- Serial 1/0 91
- To ATM E3 network 92
- Connecting the Power 96
- Startup Configuration.” 98
- Configuring a Router 101
- Configuring the T3 Interfaces 109
- Configuring the E3 Interfaces 111
- Troubleshooting Overview 123
- Identifying Startup Problems 125
- APPENDIX 129
- Fast Ethernet and Ethernet 130
- SM-EC-3DES 131
- System Specifications 133
- Cable Specifications 135
- Identifying a Rollover Cable 136
- RJ-45 connector 139
- Router port 140
- Interface cable 140
- Router connections 141
- EIA/TIA-449 V.35 X.21 141
- EIA/TIA-232 EIA-530 141
- EIA/TIA-232 Connections 142
- 1. HD = high-density 143
- EIA/TIA-449 Connections 144
- V.35 Connections 146
- X.21 Connections 149
- EIA-530 Connections 150
- Cisco 7140-2E3 Cables 152
- 75-ohm coaxial cabling 154
- BNC plugBNC plug 154
- To ATM network 154
- Ferrite bead 154
- SONET Distance Limitations 156
- Power Budget 156
- Single-Mode Transmission 159
- Numerics 161
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