B&K Precision 9116 - Programming Manual - Manual (Page 5)

RS-485
For multi-unit configuration and control, the male DB-9 interface labeled RS-485 in the rear
panel is used. The below illustrates the connection pins and description.
Note: Pin 1 is used as the B pin (+) (non-inverting).
Pin 5 is used as the A pin (-) (inverting).
SC (reference) pin is not used.
PIN Description
1 B (+)
2 -
3 -
4 -
5 A (-)
6 -
7 -
8 -
9 -
USBTMC
The device is SR1, RL1, and DT1 enabled. It can receive the following request:
REN_CONTROL, GO_TO_LOCAL, LOCAL_LOCKOUT. When it receives MsgID = TRIGGER USBTMC
command, it will transmit TRIGGER command to the function layer.
1 2 3 4 5
6 7 8 9