19 December 1986
5 July 1985
MILITARY SPECIFICATION SHEET
PRINTED CIRCUIT CARD, M1 AND M1A1 TANK
TURRET NETWORK BOX, TNB-A4
This specification is approved for use by US Army Tank-Automotive
Department of the Army, and is available for
Agencies of the Department of Defense.
use by all Departments and
The requirements for acquiring the Turret Network Box, TNB-A4 described
herein shall consist of this specification and the latest use of MIL-P-62341.
3.4 Design and construction. The printed circuit card (PCC) shall
contain relays which provide the control logic for the turret electrical
system (see 4.8.1).
3.4.1 Configuration. The PCC shall be fabricated and assembled in
accordance with Drawing 12282891 (see 4.8.2).
The weight of the PCC shall not exceed 1.5 pounds (lb)
3.4.4 Nuclear hardening. The PCC shall withstand the nuclear threat
environments as defined in classified documents control number DEOS 2060 (see
This characteristic is not specified.
3.5.1 Circuit continuity.
3.5.2 Circuit isolation. The resistance between any two isolated
circuits defined in table I shall be not less than 100 megohms at 100 ± 10
volts (V) direct current (de) (see 220.127.116.11).
1 of 8
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited