Seismic data acquisition module

A seismic signal processing assembly comprising the combination of:

• (a) a motherboard unit (50) comprising a substantial portion of electronic signal processing circuitry essential to the operation of the assembly enveloped by a contiguous protective barrier (51).
• (b) an external housing (20) having an internal cavity (22) therein for removably receiving said motherboard unit (50) therein, said housing having a removable closure element (30) for environmentally isolating said internal cavity;
• (c) a first signal connector (13, 17) secured to said housing for transfer of signal continuity through said housing;
• and,
• (d) a second signal connector (41, 42) for selectively connecting said signal processing circuitry to said first signal connector.

A motherboard for a seismic signal processing module comprising:

• (a) a structural substrate (50) supporting a substantial portion of electronic signal processing circuitry essential to the operation of said module, said substrate being configured for selective confinement within an external housing (20);
• (b) a protective enclosure (51) intimately covering said substrate (50) and circuitry for substantially isolating said circuitry from manual contact when said module is manually handled externally of said housing;
• and,
• (c) a releasable conduit connector (35, 36) projecting from said enclosure for connecting said signal processing circuitry with a housing wall connector (13, 17) internally of said external housing.