Tech_specs_Terminal_Boards_1.pdf
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- Attached to
- TERMINAL BOARDS Federal contract opportunity
- Solicitation number
- 140G0326Q0090
About this file
This document contains technical specifications for a proprietary 4-channel terminal strip interface board (Model 111915-01-PL) required by the Earthquake Science Center's National Strong Motion Network. The board serves as a critical 100% analog adapter interface between Kinemetrics Multi-Channel Digitizer models (Granite, Basalt, and Obsidian) and seismic sensors deployed across building and bridge structural arrays. The terminal board is essential for deploying 70 digitizer-recorders currently awaiting deployment, as the existing digitizer models cannot function with the older seismic sensors in current structures without this interface.
The board performs two primary functions: it routes sensor connector lines to a terminal strip where bare wires from seismic sensors can be electrically attached to the digitizer recording and power circuits, and it converts a single +12V power source from the digitizer into +/- 12-volt differential power required to operate the older seismic sensors. The board must plug directly into two mil-spec sensor connectors on the front end of the digitizers—a 26-socket 3-seismic-channel connector and a 15-socket 1-seismic-channel connector positioned approximately 2 7/8 inches apart. As a non-processing analog device with no computing capacity, the terminal board functions purely as a connector adapter to enable interoperability between the newer digitizer systems and legacy sensor infrastructure across the structural monitoring arrays.
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Technical Specifications:
111915-01-PL 4-channel Terminal Strip Interface Board, with output of +/-12V differential power
The Earthquake Science Center’s National Strong Motion Network (NSMN) now has
70 digitizer-recorders being readied for deployment to upgrade the recording systems in currently non-functioning building and bridge structural arrays. The “terminal boards” being ordered, as described in detail below, are a 100% required interface between the digitizer-recorders and the strong motion seismic sensors mounted on structural elements on the structures. The terminal board hardware, which is essentially an adaptor having no computing or processing capacity on its own, is proprietary and allows sensor wires routed to a central location within a structure to be connected directly to the digitizer-recorders. This purchase is to meet this critical need.
Functionality:
a. This board plugs in directly to the mil-spec sensor connectors on the front end of a
Kinemetrics Multi-Channel Digitizer (Models Granite, Basalt and Obsidian). The board performs 2 primary tasks:
1. Routes sensor connector lines to a terminal strip where bare wires running from the seismic sensors (located throughout a building) can be electrically attached to the digitizer recording and power circuits. The terminal board has no processing capability whatsoever. It is a 100% analog device.
2. The terminal board supplies +/- 12-volt differential power to the seismic sensors which is a requirement for the older sensors we have installed in our building and bridge arrays to function properly.
Requirements:
A single terminal board must plug into the socket sensor connectors on the front end of a Kinemetrics Multi-Channel Digitizer (Models Granite, Basalt and Obsidian).
Each terminal board plugs into 2 connectors: A 26-socket 3-seismic-channel connector and a 15-socket 1-seismic-channel connector. The on-center distance between the 2 connectors is approximately 2 7/8 inches. The terminal board must convert +12V (sourced from the Granite or Basalt or Obsidian digitizer) to +/- 12 Volt differential power required to power the older seismic sensors. The Digitizer Models
Granite, Basalt and Obsidian that are currently on our shelves waiting to be deployed are not usable in our existing structures without this board.
File details come from the government source that posted it. Updated .