Memory; Internal Gps Module - Cisco 1120 Hardware Installation

Router Hardware Description

Hardware Features

This router supports the three types of memory described in this section.



SD Flash Memory Module–See

card, which stores the router configuration and system data.



DDR2 SDRAM–The router features 1 GB of double data rate (DDR2) SDRAM.



Boot Flash–The router features 16 MB of boot flash memory, consisting of two 8 MB Serial Peripheral Interface (SPI)

flash devices. The boot flash supports the Common Flash Interface (CFI) standard.

The router has an internal Global Positioning System (GPS), which provides precise time and location information to the

system.

GPS LED

You can view the GPS LED to determine the GPS state and whether or not it is successfully connected to a GPS satellite.

For information on the GPS LED, see

Specifications

Specification

Channels

Tracking sensitivity

Acquisition sensitivity

Fast TTFF (Cold start)

Error correction

Related Commands



Displaying GPS Current Time and Location for a Cisco CG-OS Router, page 31



Displaying GPS Current Time and Location for a Cisco IOS Router, page 31

Displaying GPS Current Time and Location for a Cisco CG-OS Router

Use the commands in this section to see the GPS current time and location.

Use the show gps time command to display the current GPS time:

CGR1120# show gps time

8:46:9.923 UTC Fri Sep 11 2011

Use the show gps location command to display the GPS latitude and longitude:

CGR1120# show gps location

Latitude: 37.4090637

Longitude -121.9523598

Displaying GPS Current Time and Location for a Cisco IOS Router

Use the commands in this section to see the GPS current time and location.

Use the show platform gps time command to display the current GPS time:

Using the SD Flash Memory Module, page 79

Router LED Locations and States, page

Description

12

-160 dBm

-148 dBm

38 sections

Space Based Augmentation Systems (SBAS)

31

for information about the router SD

85.