Models 2890 & 2891 are designed to functionally support T1/E1 protocol in a fiber optic application. The product is a transmitter/receiver full duplex device with normal operating data rate of 1.54 Mbps (T1) and 2.048 Mbps (E1).S.I. Tech's model 2890/2891 is a stand-alone or rack, 1U high, mountable product allowing easy change from T1 or E1 to fiber. Simply disconnect the T1 or E1 cable and connect to model 2890/2891 input/output ports. This product comes with status indicators and an internal power supply along with an optical link failure alarm built in.
This optical Bit-Driver product eliminates many disadvantages of T1 or E1 lines, especially EMI/RFI, ground loops, high attenuation, limiting distance between nodes of systems and lighting damage outdoors between buildings.The 2890-2891 features clear channel capability for voice, data, fax and video for multi-mode or single-mode fiber optic applications.
October 17, 2011