Comtech EF Data SPOD PS 1, PS 1.5, and PS 2 C-, X-, or Ku-Band - Manual (Page 131)

SPOD C-, X-, or Ku-Band Outdoor Amplifier MN-SPODPSX
Appendix A Revision 1
A–5
Only the offline unit is allowed to initiate a redundant switchover by throwing the waveguide
switches. The offline unit will initiate a redundant switchover if any of the following conditions
are met:
• Online unit faulted, and offline unit is not faulted.
• Inter-unit redundant link established, and then timed out.
• Mismatched waveguide switch condition is detected.
• Unit is forced online through a remote command.
If the unit has offline mute (OFM) enabled, then the unit will mute the RF output when it is
offline.
A.3.2.1 Applicable Serial-based Redundancy Commands and Queries
See Chapter 5. SERIAL-BASED REMOTE PRODUCT MANAGEMENT for detailed
information about the remote commands and queries specified in this section.
Remote commands applicable to redundancy operations are as follows:
Remote Command Meaning Functional Description
RED Redundancy Online/Offline Reports the appropriate unit’s online/offline status. Also used
to force a unit to go active (online).
ESW Enable Switch Mode Puts the unit into redundancy or standalone (manual) mode.
AOF Attenuation Offset
Individual attenuation command, used to adjust out small
differences in power levels of different amplifier.
A.4 Troubleshooting Connectivity Issues
Each network is unique, and network configuration and management are outside the
scope of this manual. This information is provided as a helpful troubleshooting tool,
but trained network specialists may be required to make an Ethernet-enabled
product work in a specific network. This section offers common solutions to network
connectivity issues experienced by Comtech EF Data technical support personnel
while developing or testing Ethernet-enabled products using the Windows XP
operating system.
The most common connectivity issue is neglecting to properly connect the SPOD to the external
PC Ethernet interface.
Check for link and activity LEDs to light up on the NIC or network switch where the SPOD is
connected to the Ethernet network. If the link LED is lit, validate the Ethernet connection by
pinging the SPOD at its IP address using the Windows Command-line interface:
• To access the Command-line interface, click Start  Run… from the external PC’s Taskbar.