User's Manual

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IMU-200 Remote Mount

Pulser Wiring Information

Rev. 01, February 25, 2011

1 Overview

This document is intended to describe the wiring of the IMU-200 Remote Mount Module to

various partner devices. Internally these projects are referred to as ComGas 1 and ComGas 2.

The ComGas 1 consists of a Remote Mount IMU connected to a Riotronics pulser with a tamper

interface.

The ComGas 2 connects a Remote Mount IMU to a Mercury Corrector Unit, with support for

tamper and 2 channels of data, both uncorrected and corrected. This requires 4 channels of

input data to the IMU and tamper detection.

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IMU-200 Remote Mount Pulser Wiring Information Rev. 01, February 25, 2011 1 Overview This document is intended to describe the wiring of the IMU-200 Remote Mount Module to various partner devices. Internally these projects are referred to as ComGas 1 and ComGas 2. The ComGas 1 consists of a Remote Mount IMU connected to a Riotronics pulser with a tamper interface.
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Architecture The Remote Mount IMU pulse input is compatible with a Form A (normally open) switch. The voltage to the input is provided by an internal pull-up as shown in Figure 1. The voltage and timing for a valid input pulse to the Remote Mount IMU is shown in Table 1 and Figure 2. Figure 1 – Pulse Input Electrical Diagram Table 1 – Pulse Electrical Parameters Spec Nom. Min. Max. VBAT 2.1V 1.9V 2.14V VIL -- -0.5V 0.36V VIH -- 1.5V 2.
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2.1 Connection Definitions The Remote Mount IMU has been tested with two devices to support current customer needs. These devices are the Riotronics –PS4 model and the Mercury Corrector. Signal connections to each of the devices are shown in Table 2. Table 2 – PCBA Connections Pin IMU-300 Riotronics –PS4 Mercury Corrector 1 Pulse IN Ch. 1 Pulse Out Pulse Out Ch. A + 2 Ground Ground Ground 3 Pulse IN Ch. 2 N/C Pulse Out Ch. B + 4 Ground N/C N/C 5 Pulse IN Ch. 3 N/C Pulse Out Ch.