Simplex Discrete Input 40-Pin Mass Termination Block

Installation notes

The Simplex Discrete Input 40 Pin Mass Termination Block provides wiring terminations for a DI, 32-Channel, 24 VDC, Dry Contact, Series 2 Plus card.
Set the keys on the terminal block to E3 to match the DI, 32-Channel, 24 VDC, Dry Contact, Series 2 Plus card.
The mass termination block has two 20-pin IDC headers that split the 32 channels into two 16-channel headers. Each of the two-row headers accepts a 20-pin 1-for-1 passthrough cable with 2x10 header connectors.
When the DI, 32-Channel, 24 VDC, Dry Contact, Series 2 Plus card is used with the Simplex Discrete Input 40-Pin Mass Termination Block and the DI Mass Connection Solution, the card can be configured to detect faults in the termination. Two parameters, T1_FAULT_DETECT (for the ribbon cable connection for channels 1-16), and T2_FAULT_DETECT (for the ribbon cable connection for channels 17-32), can be enabled in DeltaV Explorer for the card. When these parameters are set to True, detection of the ribbon cable connection between the Simplex Discrete Input 40 Pin Mass Termination Block and the DI Mass Connection Board is enabled and the system detects faults such as a missing cable or missing Mass Connection Board.
The return connection is made internally between the mass termination block and the DI, 32-Channel, 24 VDC, Dry Contact, Series 2 Plus card. No external wire is required.

Note

The termination fault detection feature is available only when the DI, 32-Channel, 24 VDC, Dry Contact Series 2 Plus card is used with the Simplex Discrete Input 40-Pin Mass Termination Block connected to the DI Mass Connection Solution.

Specifications

Table: Simplex Discrete Input 40-Pin Mass Termination Block specifications
Item	Specification
Voltage rating	30 VDC
Maximum current	5 mA per channel; 160 mA total
Mounting	Assigned slots of I/O carrier. The lower slot number must be odd and the upper slot number must be the next higher even number. For example, slots 1 and 2, slots 3 and 4, and slots 5 and 6 are valid pairs. Slots 2 and 3 are not a valid pair.

Terminal block connections

Table: Simplex Discrete Input 40-Pin Mass Termination Block cable pin outs
J5 connector	Signal	J6 connector	Signal
Pin 1	Channel 1	Pin 1	Channel 17
Pin 2	Channel 2	Pin 2	Channel 18
Pin 3	Channel 3	Pin 3	Channel 19
Pin 4	Channel 4	Pin 4	Channel 20
Pin 5	Channel 5	Pin 5	Channel 21
Pin 6	Channel 6	Pin 6	Channel 22
Pin 7	Channel 7	Pin 7	Channel 23
Pin 8	Channel 8	Pin 8	Channel 24
Pin 9	Channel 9	Pin 9	Channel 25
Pin 10	Channel 10	Pin 10	Channel 26
Pin 11	Channel 11	Pin 11	Channel 27
Pin 12	Channel 12	Pin 12	Channel 28
Pin 13	Channel 13	Pin 13	Channel 29
Pin 14	Channel 14	Pin 14	Channel 30
Pin 15	Channel 15	Pin 15	Channel 31
Pin 16	Channel 16	Pin 16	Channel 32
Pin 17	Left cable detection	Pin 17	Right cable detection
Pin 18	+24 V	Pin 18	+24 V
Pin 19	Left cable detection	Pin 19	Right cable detection
Pin 20	+24 V	Pin 20	+24 V