IBM 4846-545 Service Guide - Page 138
Connector-pin, assignments, External, connectors
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System specifications and planning information Table 26. Port current ratings Port / name Port Current Ratings Distributed VFD/Serial 5V 12V USB (x6) 5V USB Plus Power 5V 12V 24V Keyboard and Mouse 5V Maximum current 0.95A 0.65A 0.5 A 0.5 A 1.5 A 3.0 A continuous 5.0 A peak 0.6 A Connector-pin assignments This following sections list the connector-pin assignments for the external and internal connectors. External connectors The following sections show the connector-pin assignments for external connectors. Speaker connector 5 1 Table 27. Speaker connector-pin assignments Pin 1 2 3 4 5 MSR connector Connect +12 V AC Ground Line Left Line Right Ground 8 1 Table 28. MSR connector-pin assignments Pin 1 2 3 4 116 Models 545 and 565 Hardware Service Guide Connector +5 V dc Serial data out Serial data in Ground