Fluke Biomedical 942A-200L-M4 - Manual (Page 79)

Appendix
Cable Termination Instructions
D
D-3
The Tyco Electronics /AMP Circular Plastic Connectors (Series CPC) are utilized for the UDR rear
connectors, P1 and P3. These connectors utilize female, push-in, solder type connector pins, terminating
single conductors from various field cables. Follow the general instructions stated above for cable
routing. A minimum of 6 inches of service loop is required for access to the UDR function/data entry
switches. For front of panel removal, a service loop of 21 inches, minimum, is required. To prevent
damage to these conductors, it is recommended that a 5-inch length of shrink tubing or sleeving be
installed over the conductors, from the unstripped end of the multiconductor cable and into the strain relief
of the detector backshell. The shrink tube will protect the conductors from abrasion.
To terminate this connector, slide the Connector Shell/Clamp over the conductors. The conductors are
then stripped to the length specified (0.156 in, 14 – 30 AWG). Prior to soldering, check to ensure a
minimum of 6 inches of service loop conductor is provided. The connector pins are then soldered to the
female connector pins provided and inserted into the appropriate location in the connector plug (Refer to
the applicable project Detector Loop Drawing). The Shell/Clamp is then threaded onto the detector plug,
and the backshell strain relief clamp is securely tightened. For controlled environment applications, it is
not required to apply heat to this shrink tubing. For additional information, consult the appropriate
manufacturer assembly instruction procedure provided.
Analog Input Connector Notes (P6)
The P6 connector is a 24 pin, male, solder type connector. Amphenol manufactures the UDR rear
connector, P6. The maximum size wire for this connector is 22 AWG. These connectors utilize single, or
twisted pair conductors from various field cables, and are normally provided by the customer. Follow the
general instructions stated above for cable routing. A minimum of 6 inches of service loop is required for
access to the UDR function/data entry switches. For front of panel removal, a service loop of 21 inches,
minimum, is required. The cable jacket is first stripped to a length of approximately 0.8 inches. This will
permit using the cable jacket in the strain relief provided. If single conductors are used, it is
recommended that shrink tubing or sleeving be installed over the conductors, to protect the conductors
from abrasion.
The wires are then stripped to a length 0.07 – 0.09 inches, and soldered to the pins on the connector
assembly. The connector pin assembly is then inserted between the two halves of the connector body,
and secured using the fasteners provided. Finally, the screws on the connector body strain relief are
securely tightened. For controlled environment applications, it is not necessary to apply heat to the shrink
tubing. For additional information, consult the appropriate manufacturer assembly information provided.
RS232 Connector (P7)
The P7 connector is a 25-pin d-type, male, solder type connector. AMP manufactures the UDR rear
connector, P7. The maximum size wire for this connector is 20 AWG. These connectors utilize single or
twisted pair conductors from various field cables, and are normally provided by the customer. Follow the
general instructions stated above for cable routing. A minimum of 6 inches of service loop is required for
access to the UDR function/data entry switches. For front of panel removal, a service loop of 21 inches,
minimum, is required. The cable jacket is first stripped to a length of approximately 0.8 inches. This will
permit using the cable jacket in the strain relief provided. If single conductors are used, it is
recommended that shrink tubing or sleeving be installed over the conductors, to protect the conductors
from abrasion.
The wires are then stripped to a length 0.07 – 0.09 inches, and soldered to the pins on the connector
assembly. The connector pins are then inserted into the appropriate location in the connector. The
connector pin assembly is then inserted between the two halves of the connector body, and secured
using the fasteners provided. For controlled environment applications, it is not necessary to apply heat to
the shrink tubing. For additional information, consult the appropriate manufacturer assembly instruction
procedure provided.