trig TN72, Руководство по установке

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TN72 TABS GPS Receiver Installation Manual 5 January 2018
01691-00 Issue AG
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Trig Avionics Limited 9
In normal operation the RS232 control input to the GPS is not used.
5.5.3 One PPS Output
The TN72 provides a one pulse-per-second output that is synchronised to the
GPS clock. This is encoded on an RS-422 balanced pair.
The one PPS output is not used in Trig transponders.
5.6 D Connector Crimp Terminals
The 9 way connector supplied with the TN72 installation kit is a MIL standard
version of the popular sub miniature D type connector family, and use
individual crimp terminals and a receptacle. The MIL specification for this
family of connectors is MIL-C-24308. We supply crimp terminals because
these are more reliable than soldered connections, and are easier to assemble
in-situ in an aircraft, where soldering is impractical. They also allow individual
wires to be removed and replaced in a receptacle without replacing the whole
connector.
The socket contacts conform to MIL part number M39029/63-368, and are also
suitable for wire gauges from 20 to 24 AWG.
These contacts are widely used in avionics installation, and there are many
tools available on the market that will reliably crimp them to the wiring.
Because the contacts are a MIL standard, there is also a MIL standard for the
crimp tool, although other proprietary solutions are also available.
The MIL reference for the basic style of hand tool is M22520/2-01. This style
of tool can crimp many different contact types, and relies on interchangeable
"positioners" to hold the actual contact in use. The MIL reference for the
positioner that you need for the crimps we supply is M22520/2-08.
Any tool that complies with these references can be used to crimp these
contacts. One of the most popular vendors of these small hand tools is Daniels
Manufacturing Corporation (see www.dmctools.com). Their AFM8 hand tool
complies with M22520/2-01, and their K13-1 positioner is M22520/2-08
compliant, so the combination will crimp the supplied connectors.
Once crimped, the contacts should be slotted into the rear of the connector
shell. Push the contact in until the retaining tab clicks into place. Tug gently to