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Capstone Turbine Corporation 21211 Nordhoff Street Chatsworth CA 91311 USA Technical Reference: Capstone C60/C65 Electrical Table 6. Connectors J1 and J2 – MultiPac Communication Ports J1 MultiPac Communication Ethernet Protocol (I/O) (Note 1) (Note 2) J2 MultiPac Communication Ethernet Protocol (I/O) (Note 1) (Note 2) Note 1: Whenever J1 or J2 are at the extremities of the Ethernet network, 50-ohm BNC terminators must be installed at these ports. The maximum number of nodes is 30, and the maximum total RG-58A/U coaxial cable length is 185 meters. Each MicroTurbine has 1.93 meters of internal cable length that must be included in the total length considerations. Repeaters may be added whenever the maximum cable length or the maximum numbers of nodes are exceeded. Notice that these ports are reserved for the interconnection of MicroTurbines only. Note 2: Connections made to these ports MUST be isolated from ground. Table 7. Connectors J3 and J5 – Serial Communication Ports Pin Signal Parameter Pin Signal Parameter J3 Maintenance Interface Port J5 User Interface Port DB25 (male polarity) and RS-232 protocol. Maximum null modem cable length is 50 feet (Note 1) DB9 (male polarity) and RS-232 protocol. Maximum null modem cable length is 50 feet (Note 1) Note 1: Connections made to these ports MUST be isolated from ground and/or communication ports of other MicroTurbines. Table 8. Connector J6 – Inter-Controller (A) RS-485 Port Pin Signal Parameter J6 (A) J6 (B) J6 (C) J6 (D) J6 (E) J6 (F) J6 (G) J6 (H) J6 (J) J6 (K) J6 (L) J6 (M) Serial Communication (Not Applicable) Inter-Controller Start (Not Applicable) Global E-Stop (Not Applicable) (Not Applicable) E-Stop Return (Not Applicable) Inter-Controller Start Return (Not Applicable) Serial Communication RS-485, Bus A Protocol (Note 1) Chassis Ground +24 Volts DC @ 15 milliamps per MicroTurbine (Note 2) Chassis Ground Normal Operation: N*42 milliamps. E-Stop: (+) 24 Volts DC (Note 3) Chassis Ground Spare Normal Operation: N*42 milliamps. E-Stop: 0 Volts DC Reserved 30 milliamps per MicroTurbine @ 0 Volts DC Reserved RS-485, Bus B Protocol Note 1: Whenever J6 is at the extremities of the RS-485 multi-drop network; Capstone-provided terminators must be installed. The maximum number of nodes is 32, and the maximum RS-485 cable length is 1000 meters. Each MicroTurbine has 1.93 meters of internal cable length, which must be included in the total length considerations. Repeaters may be added whenever the maximum cable lengths or the maximum number of nodes are exceeded. Note 2: No more than 20 MicroTurbines may be connected on one multi-drop branch. Parallel branch wiring must be used when N>20. 410001 Rev K (June 2009) Page 17 of 22 Capstone reserves the right to change or modify, without notice, the design, specifications, and/or contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | Technical Reference Capstone Model C60/C65 Electrical
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