Cisco 3825 Hardware Installation Guide - Page 347
Information About the NM-1VSAT-GILAT Network Module, General Satellite Network Components
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Chapter 33 Connecting Cisco IP VSAT Satellite WAN Network Modules Information About the NM-1VSAT-GILAT Network Module • To avoid damaging the NM-1VSAT-GILAT network module, disconnect the power supply from the ODU PWR connector on the NM-1VSAT-GILAT network module before you attempt any of the following actions: - Connecting a cable to the RF-IN or RF-OUT connector - Disconnecting a cable from the RF-IN or RF-OUT connector - Inserting the NM-1VSAT-GILAT network module into the router chassis - Removing the NM-1VSAT-GILAT network module from the router chassis • After completing the hardware installation, moving the router with the installed NM-1VSAT-GILAT network module may require longer radio frequency (RF) cables. Depending on the ODU type and the additional length required for the cables, you may need a technician to install line amplifiers. Contact your satellite service provider if you plan to extend your cables by more than 35 feet (11 m). Note For software-related restrictions, see the Cisco IP VSAT Satellite WAN Network Module (NM-1VSAT-GILAT) Cisco IOS feature module. Information About the NM-1VSAT-GILAT Network Module Before performing the tasks in this document, you should understand the following concepts: • General Satellite Network Components, page 33-3 • NM-1VSAT-GILAT Network Module Connectors, page 33-7 • Outbound and Inbound Directions in a Satellite Communications Network, page 33-7 • NM-1VSAT-GILAT Network Module LEDs, page 33-7 Note For NM-1VSAT-GILAT network module features and benefits, supported hardware and software, and other product information, see the Cisco IP VSAT Satellite WAN Network Module (NM-1VSAT-GILAT) Data Sheet. General Satellite Network Components Figure 33-2 shows a satellite communications network that includes NM-1VSAT-GILAT network modules. Note Not shown in Figure 33-2 are the terrestrial WAN connections that are also commonly used to connect VSAT routers to the Internet or an intranet. A terrestrial WAN connection can be used to back up a satellite link or can serve as a primary link that is backed up by a satellite link. OL-2485-20 Cisco Network Modules Hardware Installation Guide 33-3