B&K Precision 9171-9174 - Manual - Manual (Page 95)

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4 Remote Operation
4.1 Interface Connection
USB (Virtual COM) & RS-232
All models have a standard USB interface (virtual COM) that can be
used for remote communication. Optionally, an RS232 interface
card is available for remote control via RS-232 interface. Both USB
(virtual COM) and RS-232 have the same serial settings listed below:
BAUDRATE: 57600
PARITY: NONE
DATA BITS: 8
STOP BIT: 1
FLOW CONTROL: NONE
For RS-232 connectivity, refer to the diagram below for pin out
information:
1 2 3 4 5
6 7 8 9
Figure 26- RS-232 Interface