NPFC - MIL-S-28851
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917
active, Most Current
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| Organization: | NPFC |
| Publication Date: | 30 April 1995 |
| Status: | active |
| Page Count: | 1 |
scope:
This specification covers two 16 by 16 switching matrices. One is a secure teletype switching matrix that connects certain devices to teletypewriter and cryptographic equipment, as well as to several minicomputer input/output (I/O) channels, hereinafter referred to as Unit A. The other is a receiver audio switching unit that connects several receiver outputs to specified audio equipment, hereinafter referred to as Unit B.
intended Use:
The equipment covered by this specification is intended for use in submarines.
Document History
July 13, 2021
Switchboard, Teletypewriter Signal, Secure SB-3917/BGC and Receiver Audio SB-3918/BRR
A description is not available for this item.
MIL-S-28851
April 30, 1995
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917
This specification covers two 16 by 16 switching matrices. One is a secure teletype switching matrix that connects certain devices to teletypewriter and cryptographic equipment, as well as to several...
February 28, 1983
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917/BGC AND RECEIVER AUDIO SB-3918/BRR
This specification covers two 16 by 16 switching matrices. One is a secure teletype switching matrix that connects certain devices to teletypewriter and cryptographic equipment, as well as to several...
January 9, 1981
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917/BGC AND RECEIVER AUDIO SB-3918/BRR
A description is not available for this item.
April 4, 1980
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917/BGC AND RECEIVER AUDIO SB-3918/BRR
A description is not available for this item.
October 31, 1979
SWITCHBOARD, TELETYPEWRITER SIGNAL, SECURE SB-3917/BGC AND RECEIVER AUDIO SB-3918/BRR
A description is not available for this item.