Keithley DAS-8 Series User Manual page 30

For the EXP-16, EXP-16/A, and EXP-GP, you attach the expansion
boards in a daisy-chain configuration using the S-1800 or C-1800 cable.
The first expansion board in the daisy chain is associated with on-board
channel 0, the next expansion board is associated with on-board channel
1, and so on. You specify the associated on-board channel by setting a
jumper on each expansion board. You can access any unused on-board
channels by attaching an STA-08 or STA-08PGA screw terminal
accessory to the last expansion board in the daisy-chain configuration.
Each EXP-16 (group of 16 channels) can operate at a different gain. In
this way a system can be configured with a variety of different channel
functions and gains, single-ended and differential.
The PG408 DC/DC Converter option on the EXP-16 is required
Note:
for use with the DAS/AO board.
Figure 2-2 illustrates a daisy-chain configuration of two EXP-16
expansion boards, one EXP-GP expansion board, and an STA-08 screw
terminal accessory connected to a DAS-8 board.
On-board
channel 0
DAS-8 EXP-16
Board
Figure 2-2. Channel Expansion
Refer to the appropriate expansion board documentation for more
information about the EXP-16, EXP-16/A, and EXP-GP expansion
boards.
For information on attaching multiple MB-02 backplanes, refer to the MB
Series User's Guide.
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On-board On-board
channel 1 channel 2
EXP-16
EXP-GP
On-board
channels 3 to 7
STA-08
2-9