Redundancy 1:1 RF Protection Switch | PL7611

The PL7611 card provides 1:1 redundant switching for the Sat-Light/Platinum inter-facility link products, including the IF and L-band families.

The PL7611 can be controlled either locally or remotely. Global Foxcom’s Platinum series MCP [PL700] can set the switching state (either remote or local) or the transmission  path (channels A or B). However, in the case of a fault in the SNMP manager, the user can override the SNMP manager and return to control locally via the front panel override switch.

The Sat-Light/Platinum MCP graphically displays the active path. Switching from the primary to redundant path can be performed by the PL7611  manually or automatically. When the unit switches to the redundant channel, it will lock and continue to transmit over that channel regardless of the input to the primary channel. The high reliability, high-frequency relay  redundancy switch can be configured to detect faults the optical signal, or both. In addition the user can set the  threshold level at which the PL7611 switch detects loss of RF signals.

The PL7611 provides two methods to detect which channel is operating:
1. Via a 3-pin Molex connector on the rear panel;
2. Through the chassis via the 9-pin connector.

Redundant paths are configured using a Platinum RF splitter, which transmits the RF signal to two transmitter cards. These cards are connected via single mode fiber optic cable to two receivers. Each receiver card connects to the PL7611 via a supplied coaxial jumper cable. The PL7611 then transmits the RF output signal to the end device.