GE Multilin B30 Bus Differential System 3-293 HARDWARE 3.3 DIRECT INPUT AND OUTPUT COMMUNICATIONS3.3.2 FIBER: LED AND ELED TRANSMITTERSThe following figure shows the configuration for the 7A, 7B, 7C, 7H, 7I, and 7J fiber-only modules.Figure 3–30: LED AND ELED FIBER MODULES3.3.3 FIBER-LASER TRANSMITTERSThe following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser module.Figure 3–31: LASER FIBER MODULESWhen using a laser Interface, attenuators can be necessary to ensure that you do not exceed themaximum optical input power to the receiver.7Q Channel 1: G.703, channel 2: 1300 nm, single-mode, laser7R G.703, 1 channel7S G.703, 2 channels7T RS422, 1 channel7V RS422, 2 channels, 2 clock inputs7W RS422, 2 channelsTable 3–3: CHANNEL COMMUNICATION OPTIONS (Sheet 2 of 2)MODULE SPECIFICATION
