To Install The Psca I/O Pack; Serial Channels - GE Mark VIeS System Manual

9.1.1 Installation
➢ ➢ To install the PSCA I/O pack
1. Securely mount the desired terminal board.
2. Directly plug one PSCA I/O pack into the SSCA terminal board connector.
Mechanically secure the I/O packs using the threaded inserts adjacent to the Ethernet ports. The inserts connect with a
3.
mounting bracket specific to the terminal board type. The bracket location should be adjusted such that there is no right
angle force applied to the DC-62 pin connector between the I/O pack and the terminal board. The adjustment should only
be required once in the service life of the product.
Note The PSCA mounts directly to an IS410SSCAH2A simplex terminal board, which has a single DC-62 pin
connector that receives the PSCA.
4. Plug in one or two Ethernet cables depending on the system configuration. The I/O pack operates over either port. If dual
connections are used, standard practice is to hook ENET1 to the network associated with the R controller; however, the
PSCA is not sensitive to Ethernet connections and will negotiate proper operation over either port.
5. Apply power to the I/O pack by plugging in the connector on the side of the pack. It is not necessary to remove power
from the cable before plugging it in because the I/O pack has inherent soft-start capability that controls current inrush on
power application.
6. From the ToolboxST* application, add the PSCA module, and add and configure the required devices. From the
Component Editor, press F1 for help.
9.1.2 Operation
The following features are common to the distributed I/O modules:
• BPPx Processor
• Processor LEDs
• Power Management
• ID Line
• I/O Module Common Diagnostic Alarms
9.1.2.1 Connectors
• The DC 62-pin connector on the underside of the I/O pack connects directly to a discrete output terminal board.
• The RJ-45 Ethernet connector (ENET1) on the I/O pack side is the primary system interface.
• The second RJ-45 Ethernet connector (ENET2) on the I/O pack side is the redundant or secondary system interface.
Note The terminal board provides fused power output from a power source that is applied directly to the terminal board, not
through the I/O pack connector.

9.1.2.2 Serial Channels

The PSCA board in the I/O pack contains six independently configurable serial channels. Each of the ports can support the
following modes: RS-232, RS422, RS 485 half-duplex. Jumpers on the SSCAH2A terminal board are used to set up the
terminal scheme for the selected communication mode. For details on proper wiring and jumper settings for the supported
modes, refer to the section SSCA Simplex Serial Communication
286 GEH-6855_Vol_II
Input/Output.
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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