UR 7BH | GE Communications module

The UR 7BH is a COMMS module (communications module) for use in the Multilin universal relays. The UR 7BH is of the 7B variation of the type 7 communications modules. Not all variations can be found in a specific universal relay. It is important to consult with the order options offered for each of the Mutlilin universal relays to understand a comprehensive view of the variable options for that specific relay. For example, the UR 7BH might be found in the T60 transformer protection system. There are specific order code tables in chapter 2 of the T60 product catalog that show which type 7 communication modules can be included in the relay system. The 7K order code indicates a two-channel single-mode module with a 1300 nm LASER wavelength. The 7B COMMS modules are configured in the same way as the 73 module, 72 module, and 7D fiber-laser module, with two channels. The first channel is oriented over the second channel in a vertical orientation. The first channel has a Tx1 and an Rx1 section and the second channel has a Tx2 and an Rx2 option within the laser fiber module.