Table Of Contents
Cisco 1760 Router Overview
Key Features
Ports and LEDs
Ports
System LEDs
Ethernet LEDs
WIC/VIC LEDs
Router Memory
Types of Memory
Amounts of Memory
Unpacking the Router
Additional Required Equipment
Cisco 1760 Router Overview
This chapter introduces the Cisco 1760 router, also referred to in this guide as the router, and covers the following topics:
•
Key Features
•Ports and LEDs
•Router Memory
•Unpacking the Router
•Additional Required Equipment
Figure 1-1 shows the Cisco 1760 router.
Figure 1-1 Cisco 1760 Router
Key Features
The Cisco 1760 router is a voice-and-data-capable router that provides Voice-over-IP (VoIP) functionality and can carry voice traffic (for example, telephone calls and faxes) over an IP network. Using one or two WAN interface card (WIC) connections, the router links small-to-medium-size Ethernet and Fast Ethernet LANs in remote offices to central offices.
The Cisco 1760 router is available in two models. The Cisco 1760 runs data and data-plus-voice images, providing digital and analog voice support. The Cisco 1760-V includes all the features needed for immediate integration of data and voice services with support for multiple voice channels.
Table 1-1 lists the key features of the router.
Table 1-1 Key Features
Feature
|
Description
|
One Fast Ethernet (10/100BASE-TX) port
|
•Operates in full- or half-duplex mode (with software override support).
•Supports autosensing for 10- or 100-Mbps operation (with software override support).
|
Cisco interface cards
|
•Supports two slots (slots 0 and 1) for either WICs or voice interface cards (VICs).
•Supports two slots (slots 2 and 3) for VICs only.
•Supports the following WICs: 1T, 2T, 2A/S, 1B-S/T, 1B-U, 1DSU-56K4, 1DSU-T1, 1ADSL, and 1ENET.
•Supports the following VICs: 2FXS, 2FXO, 2E&M, 2FXO-EU, 2FXO-M1, 2FXO-M2, 2FXO-M3, 2DID, and 2BRI-NT/TE.
•Changes in WAN interface configuration can be made as your network requirements change.
|
Console port
|
Supports router configuration and management from a connected terminal or PC. Supports up to 115.2 kbps.
|
Auxiliary port
|
Supports modem connection to the router, which can be configured and managed from a remote location. Supports up to 115.2 kbps.
|
SNMP support
|
Supports Simple Network Management Protocol (SNMP) to manage the router over a network.
|
VoIP and VoFR support
|
Supports VoIP and Voice-over-Frame Relay (VoFR) connections.
|
AutoInstall support
|
Supports AutoInstall for downloading configuration files to the router over a WAN connection.
|
Ports and LEDs
This section describes the router ports and LEDs, all on the front panel, which are shown in Figure 1-2 and described in the sections immediately following.
Figure 1-2 Ports and LEDs
1
|
Interface Card Slot 0 (WIC/VIC)
|
9
|
Ethernet Port
|
2
|
Interface Card Slot 1 (WIC/VIC)
|
10
|
Ethernet LEDs
|
3
|
Console Port
|
11
|
Interface Card Slot 1 LEDs
|
4
|
Interface Card Slot 2 (VIC only)
|
12
|
Interface Card Slot 0 LEDs
|
5
|
Interface Card Slot 3 (VIC only)
|
13
|
MOD OK LED
|
6
|
Interface Card Slot 3 LEDs
|
14
|
PVDM 0/1 OK LEDs
|
7
|
Interface Card Slot 2 LEDs
|
15
|
Router OK LED
|
8
|
Auxiliary Port
|
16
|
Power LED
|
Ports
The ports of the 1760 router are described in Table 1-2.
Table 1-2 Port Connectors
Connector/Slot
|
Label/Color
|
Description
|
Ethernet port
|
10/100 ETHERNET (yellow)
|
Router connection to the local Ethernet network. This port autosenses the speed (10 or 100 Mbps) and duplex mode (full or half) of the device to which it is connected and then operates at the same speed and in the same duplex mode.
|
Auxiliary port
|
AUX (black)
|
Modem connection for remote configuration using Cisco IOS software.
|
Console port
|
CONSOLE
(light blue)
|
Terminal or PC connection for local configuration using Cisco IOS software.
|
WIC/VIC slot
|
SLOT 0
|
Supports either a Cisco WIC or a Cisco VIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide.
|
WIC/VIC slot
|
SLOT 1
|
Supports either a Cisco WIC or a Cisco VIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide.
|
VIC slot
|
SLOT 2
|
Supports a Cisco VIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide.
|
VIC slot
|
SLOT 3
|
Supports a Cisco VIC. For detailed information, refer to the Cisco WAN Interface Cards Hardware Installation Guide.
|
System LEDs
The system LEDs, described in Table 1-3, confirm the presence of power to the router, basic router functionality, and the presence of packet voice data modules (PVDMs) and Virtual Private Network (VPN) modules.
Table 1-3 System LEDs
LED Label
|
Color
|
Description
|
PWR
|
Green
|
On when DC power is being supplied to the router.
|
OK
|
Green
|
On when the router has successfully booted up and the software is functional. This LED blinks during the power-on self-test (POST).
See Table 3-1 in the "Troubleshooting" chapter for how to use this LED in router diagnostics.
|
PVDM 0 OK
|
Green
|
On when a packet voice data module (PVDM) is correctly inserted in PVDM card slot 0.
|
PVDM 1 OK
|
Green
|
On when a packet voice data module (PVDM) is correctly inserted in PVDM card slot 1.
|
MOD OK
|
Green
|
On when a VPN module is present.
|
Ethernet LEDs
The Ethernet LEDs show network activity and status on the Ethernet port. These LEDs are described in Table 1-4.
Table 1-4 Ethernet LEDs
LED Label
|
Color
|
Description
|
ACT
|
Green
|
Blinks when there is network activity on the Ethernet port.
|
COL
|
Yellow
|
Blinks when there are packet collisions on the local Ethernet network.
|
FDX
|
Green
|
On—Ethernet port is operating in full-duplex mode.
Off—Ethernet port is operating in half-duplex mode.
|
100
|
Green
|
On—Ethernet port is operating at 100 Mbps.
Off—Ethernet port is operating at 10 Mbps.
|
LINK
|
Green
|
On when the Ethernet link is up.
|
WIC/VIC LEDs
The WIC/VIC LEDs show network activity and status on the WIC and VIC ports. These LEDs are described in Table 1-5.
Table 1-5 WIC/VIC LEDs
LED
|
Color
|
Cards Supported
|
LED Meaning
|
SLOT 0 OK
|
Green
|
|
On when either a WIC or a VIC is correctly inserted in the card slot.
|
0
|
Green
|
ISDN
|
On when the first ISDN B channel is connected.
|
Serial and CSU/DSU
|
Blinks when data is being sent to or received from port 0 in slot 0. For the VIC-2BRI-ST-NT/TE, blinks when data is being sent to or received from any of the B channels.
|
2-port serial
|
VIC-2E&M
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-ST-NT/TE
|
VIC-2DID
|
WIC-1ADSL
|
WIC-1ENET
|
1
|
-
|
Serial and CSU/DSU
|
Off.
|
Green
|
ISDN
|
On when the second ISDN B channel is connected.
|
2-port serial
|
Blinks when data is being sent to or received from port 1 in slot 0.
|
VIC-2E&M
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
SLOT 1 OK
|
Green
|
|
On when either a WIC or a VIC is correctly inserted in the card slot.
|
0
|
Green
|
ISDN
|
On when the first ISDN B channel is connected.
|
Serial and CSU/DSU
|
Blinks when data is being sent to or received from port 0 in slot 1.
|
2-port serial
|
VIC-2E&M
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
WIC-1ADSL
|
WIC-1ENET
|
1
|
-
|
Serial and CSU/DSU
|
Off.
|
Green
|
ISDN
|
On when the second ISDN B channel is connected.
|
2-port serial
|
Blinks when data is being sent to or received from port 1 in slot 1.
|
VIC-2E&M
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
SLOT 2 OK
|
Green
|
|
On when a VIC is correctly inserted in the card slot.
|
0
|
Green
|
VIC-2E&M
|
Blinks when data is being sent to or received from port 0 in slot 2.
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
1
|
Green
|
VIC-2E&M
|
Blinks when data is being sent to or received from port 1 in slot 2.
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
SLOT 3 OK
|
Green
|
|
On when a VIC is correctly inserted in the card slot.
|
0
|
Green
|
VIC-2E&M
|
Blinks when data is being sent to or received from port 0 in slot 3.
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
1
|
Green
|
VIC-2E&M
|
Blinks when data is being sent to or received from port 1 in slot 3.
|
VIC-2FXO
|
VIC-2FXS
|
VIC-2BRI-NT/TE
|
VIC-2DID
|
Router Memory
This section describes the types of memory stored in the router and tells how to find out how much of each type the router has.
For instructions on how to upgrade memory in the router, See "Installing and Upgrading Memory and Packet Voice Data Modules," in this guide.
Types of Memory
The router has the following types of memory:
•Dynamic RAM (DRAM)—This is the main storage memory for the router. DRAM is also called working storage and contains the dynamic configuration information. The router stores a working copy of Cisco IOS software, dynamic configuration information, and routing table information in DRAM.
•Nonvolatile RAM (NVRAM)—This type of memory contains the startup configuration.
•Flash memory—This special kind of erasable, programmable memory contains a copy of the Cisco IOS software. The Flash memory structure can store multiple copies of the Cisco IOS software. You can load a new level of the operating system in every router in your network; then, when it is convenient, you can upgrade the whole network to the new level.
Amounts of Memory
The Cisco 1760 is shipped with 64 MB of DRAM and 32 MB of Flash memory on board.
The Cisco 1760-V is shipped with 96 MB of DRAM (64 MB on board and 32 MB in a DIMM socket) and 32 MB of Flash memory (32 MB on board and one empty SIMM socket).
Use the show version command to view the amount of DRAM, NVRAM, and Flash memory stored in your router. The following example shows the output of the show version command.
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-SV3Y-M), Version 12.2(2)XK, EARLY
DEPLOYMENT
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Fri 13-Oct-01 15:26 by ealyon
Image text-base: 0x800080FC, data-base: 0x80D117A8
ROM: System Bootstrap, Version 12.2(2)XK, RELEASE SOFTWARE (fc1)
ROM: C1700 Software (C1700-SV3Y-M), Version 12.2(4)XL, EARLY
DEPLOYMENT
Router uptime is 2 days, 1 minute
System returned to ROM by reload
cisco 1760 (MPC860) processor (revision 0x00) with 62260K/3276K bytes
of memory.
Processor board ID 0000 (1314672220), with hardware revision 0000
MPC860 processor: part number 5, mask 2
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
2 ISDN Basic Rate interface(s)
4 Voice NT or TE BRI interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)
Configuration register is 0x0
Unpacking the Router
Table 1-6 lists the items that come with your router. All these items are in the accessory kit that is inside the box that your router came in.
Table 1-6 Router Box Contents
•Power cord (black)
|
•Console cable, RJ-45 to DB-9 (light blue)
|
•Rack-mounting brackets
|
•DB-25 to DB-9 adapter
|
•Cable guide
|
•Product documentation
|
Additional Required Equipment
Depending on your local network and on which Cisco WICs and VICs you install in your router, you might need other items listed in Table 1-7 to complete the router installation.
Table 1-7 Additional Required Equipment
Equipment
|
When You Use It
|
Ethernet hub
|
A hub connects pieces of network equipment (including the router) to create a network. You can use a 10-, 100-, or 10/100-Mbps hub with the router.
|
Ethernet switch
|
A switch connects pieces of network equipment (including the router) to create a network. You can use a 10-, 100-, or 10/100-Mbps switch with the router.
|
Phillips screwdriver
|
Although the WICs and VICs use thumbscrews, you might need a Phillips screwdriver to loosen the WIC or VIC covers.
|
Cisco WIC
|
To make a WAN connection, the router must have a supported WIC installed. The router supports up to two cards. You can either order the cards when you order the router, and they will be installed for you, or you can order the cards separately, after you receive the router, and install them yourself.
|
Cisco VIC
|
To make a voice connection, the router must have a supported VIC installed. The router supports up to three cards. You can either order the cards when ordering the router, and they will be installed for you, or you can order the cards separately, after receiving the router, and install them yourself. You must install digital signal processors (DSPs) to use VICs in the router.
|
Straight-through RJ-45-to-RJ-45 cable
|
This cable connects the router to the Ethernet LAN and the WICs to various WAN services, including ISDN, T1/FT1, and 56-kbps services. You will need one cable for each of these connections.
|
Standard RJ-11 telephone cable
|
This cable connects the VIC to a telephone, fax machine, or a telephone wall-jack. You will need one cable for each of these connections.
|
Standard RJ-48 telephone cable
|
This cable connects the VIC to a PBX trunk line. You will need one cable for each of these connections.
|
Serial cable
|
This cable connects a serial card to serial services. You must order this cable from Cisco. For detailed information about serial cable types, refer to the Cisco WAN Interface Cards Hardware Installation Guide that comes with every card.
|
NT1
|
Some ISDN service providers require a Network Termination 1 (NT1) device to connect an ISDN S/T port to the ISDN line.
|
Asynchronous modem
|
To configure the router from a remote location, connect a modem to the AUX port on the router.
|
