Guidelines for using the 40-pin mass terminal block with 32-channel DO and DI cards

The 40-pin mass terminal block has two 20-pin IDC headers that split the 32 channels into two 16-channel headers. Both of the two-row headers accept a 20-pin 1-for-1 passthrough, 0.093 mm 2-ribbon cable (28 AWG) with 2x10 header connectors (AMP part #1658622-4, Strain Relief #499252-2). The assembly interfaces to a feed-through IDC-to-discrete-wire module such as the Phoenix Contact 2281047 FLKM20 VARIOFACE ribbon connector module.

To connect to the 20-pin connection:

• Connect a 20-pin to 2x14-pin configuration cable to all 8-channel digital input and output modules. These modules include the PLC-RELAY with V-8 adapter, fuse, feed-through and relay (both solid-state (SSR) and electromechanical relays (EMR)).
• Connect a 20-pin 1-for-1 cable to 16-channel modules. These modules include feed-through, fuse, relay, (SSR and EMR) and relay modules with fuses on the relay contact commons.

The 40-pin mass termination block can also interface to the Pepperl+Fuchs HiD Series Boards if IS Barriers are required. The return connection is made internally when the 40-pin mass termination block is used with DI and DO 32-channel cards. No external wire is required. The Phoenix Contact 2281047 FLKM20 VARIOFACE ribbon connector module and the Pepperl+Fuchs HiD Series Boards are Emerson Alliance Program products.