The FSK analog point-to-point mode enables the IMFEC11 module to input standard analog inputs, such as four to 20 milliamp signals, and use digital communication with Bailey-Fischer & Porter FSK style smart transmitters (Fig. 2-7). In this mode, the analog signal from each smart transmitter goes to an individual input channel (point-to-point). Because the inputs are analog point-to-point, the FEC module can interface any combination of devices while it is in this operating mode. For example, in addition to FSK smart transmitters, conventional transmitters can input process data but cannot communicate with the FEC module. The NTAI05 termination unit or NIAI04 termination module provides point-to-point termination. Dipshunts select the type of input signal for each channel. Function code 133 must be configured in the MFP or MFC device for every five analog inputs from each FSK device.
INTRODUCTION
This section explains how to install the IMFEC11/12 high level analog input (FEC) module. Do not proceed with operation until reading, understanding and doing the steps in the order in which they appear.NOTE: Always use Elsag Bailey’s field static kit (part number 19483851 - consisting of two wrist straps, ground cord assembly, alligator clip, and static dissipating work surface) when working with static sensitive devices. The kit is designed to connect the technician and the static dissipating work surface to the same ground point to prevent damage to the static sensitive devices by electrostatic discharge.
SPECIAL HANDLING
Use the static grounding wrist strap when installing and removing modules. Static discharge may damage static sensitive devices on modules in the cabinet. Use grounded equipment and static safe practices when working with static sensitive devices. Observe these steps when handling electronic circuitry:1. Use Static Shielding Bag. Keep the module in the static shielding bag until you are ready to install it in the system. Save the bag for future use. 2. Ground Bags Before Opening. Before opening a bag containing an assembly with static sensitive devices, touch it to the equipment housing or ground to equalize charges. 3. Avoid Touching Circuitry. Handle assemblies by the edges; avoid touching the circuitry. 4. Avoid Partial Connection of Static Sensitive Devices. Verify that all devices connected to the modules are properly grounded before using them. 5. Ground Test Equipment.