Cisco 3825 Hardware Installation Guide - Page 351

Chapter 33 Connecting Cisco IP VSAT Satellite WAN Network Modules Information About the NM-1VSAT-GILAT Network Module NM-1VSAT-GILAT Network Module Connectors Table 33-1 lists the physical connectors that appear on the NM-1VSAT-GILAT network module faceplate. Table 33-1 Connector RF-IN RF-OUT ODU PWR NM-1VSAT-GILAT Network Module Connectors Type 75-ohm female F connector 75-ohm female F connector 2-mm DC jack Connects To LNB on the dish antenna SSPA on the dish antenna External 24 V-DC power supply Outbound and Inbound Directions in a Satellite Communications Network The outbound direction applies to signals transmitted from the hub to the VSAT. Within a VSAT network, the outbound direction applies to RF communication from the dish antenna (ODU) to the NM-1VSAT-GILAT network module (IDU). From the VSAT perspective, the outbound direction is the receive path. Gilat SkyEdge outbound signals include user data and timing data that are compatible with the Digital Video Broadcasting-Satellite (DVB-S) standard. The inbound direction applies to signals transmitted from the VSAT to the hub. Within a VSAT network, the inbound direction applies to RF communication from the NM-1VSAT-GILAT network module (IDU) to the dish antenna (ODU). From the VSAT perspective, the inbound direction is the transmit path. Inbound signals include user data and retransmission requests. NM-1VSAT-GILAT Network Module LEDs The Cisco IP VSAT satellite WAN network module (NM-1VSAT-GILAT) has six LEDs, shown in Figure 33-4 and described in Table 33-2. Figure 33-4 NM-1VSAT-GILAT Network Module LEDs NM-1VSAT GILAT RF-IN EXT RX ON DC LOCK SYNC LINE TX ODU PWR RF-OUT EN 117347 12345 6 OL-2485-20 Cisco Network Modules Hardware Installation Guide 33-7