3
Expanded-Row Matrix Configuration
222
Keysight 34934A User’s Guide
The next section shows how to make connections linking the modules through the
expansion headers.
Interconnecting Terminal Blocks
At the rear of each terminal block are a pair of 20-pin extension headers, J24 and
J25. These headers provide for row extension and row signal access.
If your base configuration is 4x64 or 4x128, you need create only
one
module
interconnection chain, linking all J24 connectors.
For all other base configurations, you must connect create
two
module
interconnection chains; one linking all J24 connectors, the other linking all J25
connectors.
For each interconnection chain
, to physically link the member modules in an
expanded-row matrix, you must connect the center eight pins either pins 3-17
(top row) or pins 4-18 (bottom row) of the corresponding (J214 or J25) extension
headers on each terminal block in the matrix.
An example of a daisy-chain
connection of a four-module matrix is shown below.
18
2
10
4
6
8
12
14
16
20
1
3
5
7
9
11
13
15
19 17
18
2
10
4
6
8
12
14
16
20
1
3
5
7
9
11
13
15
19 17
18
2
10
4
6
8
12
14
16
20
1
3
5
7
9
11
13
15
19 17
18
2
10
4
6
8
12
14
16
20
1
3
5
7
9
11
13
15
19 17
J24, 34934T-34934A in Slot 1
J24, 34934T-34934A in Slot 2
J24, 34934T-34934A in Slot 3
J24, 34934T-34934A in Slot 4
Safety
Interlock
Continuity
Jumpers
