Conditioning cassettes come with either one (analog) or two (digital) DB37 connectors. These connectors respect OPAL-RT’s standard DB37 pinout, as shown in the table below.
Left: Channels 00-15
Right: Channels 16-31
...
DB37
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Module pin assignment
...
DB37
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Module pin assignment
...
DB37
...
Module pin assignment
...
DB37
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The following tables provide the general pin assignments for the OP4200 connectors.
| Info |
|---|
Detailed pin assignments for all connectors can be found in the System Description document provided with your order, or refer to the pin assignment of the OP5300 series IO module associated with each DB37F connector. |
| Note |
|---|
Before designing cables, OPAL-RT recommends using the guideline Simulator EMC caDB37 set of connectorsble recommendations. |
Left Connector - Channels 0 to 15 | Right Connector - Channels 16 to 31 | 
| ||||||
DB37F Pin | Assignment | DB37F Pin | Assignment | DB37F Pin | Assignment | DB37F Pin | Assignment | |
1 | +CH00 Note 1 | 20 | -CH00 | 1 | +CH16 | 20 | -CH16 | |
2 | +CH01 | 21 | -CH01 | 2 | +CH17 | 21 | -CH17 |
3 | +CH02 | 22 | -CH02 | 3 | + |
CH08 | 22 | -CH18 | |||||
4 | +CH03 | 23 | -CH03 | 4 | +CH19 | 23 | -CH19 |
5 | +CH04 | 24 | -CH04 | 5 | +CH20 | 24 | -CH20 |
6 | +CH05 | 25 | -CH05 | 6 | +CH21 | 25 | -CH21 |
7 | +CH06 | 26 | -CH06 | 7 | +CH22 | 26 | -CH22 |
8 | +CH07 | 27 | -CH07 | 8 | +CH23 | 27 | -CH23 |
9 | +CH08 | 28 | -CH08 | 9 | +CH24 | 28 | -CH24 |
10 | +CH09 | 29 | -CH09 | 10 | +CH25 | 29 | -CH25 |
11 | +CH10 | 30 | -CH10 | 11 | +CH26 | 30 | -CH26 |
12 | +CH11 | 31 | -CH11 | 12 | +CH27 | 31 | -CH27 |
13 | +CH12 | 32 | -CH12 | 13 | +CH28 | 32 | -CH28 |
14 | +CH13 | 33 | -CH13 | 14 | +CH29 | 33 | -CH29 |
15 | +CH14 | 34 | -CH14 | 15 | +CH30 | 34 | -CH30 |
16 | +CH15 | 35 | -CH15 | 16 | +CH31 | 35 | -CH31 |
17 | +12 V Note 2 | 36 | Ground | 17 | +12 V Note 2 | 36 | Ground |
18 |
See note 1 | 37 |
See note 1 | 18 |
See note 1 | 37 |
See note 1 | ||||
19 | Not used | 19 |
...
Not used |
Note 1: For exact pin assignment, see the System Description document provided with your order, or refer to the pin assignment of the OP5300 series IO module associated with each DB37F connector.
Note 2: Non-isolated, limited to 400mA.