28 â 454 HEIDENHAIN Service Manual iTNC 530 HSCI
MC 6241: Main computer for installation in electrical cabinet
Positions of the connectors Connector Function
X29 Reserved
X26, X116 Ethernet data interface
X27 RS-232-C/V.24 data interface
X141, X142,
X143, X144
USB 2.0 interface (Type A)
X101 +24 V NC power supply
X500 HSCI output 1 (synchronized) to CC,
PL, MB (not with MC 6x5x)
X501 HSCI output 2, only to MB or
PLB 6001 (not with MC 6x5x)
X600 Reserved
X249 HDL interface for visual display unit
X121 MC 6x4x: Profibus (option)
X125 SIK (System Identification Key)
X601 Reserved
Protective ground
X29
X27
X101
24V
0V
X600 X249
X500
X501
X141
X142
X26
X144
X143 X116
X125
X601