TM 11-5895-856-34-1/E E640-CA-MMI-010/ E154 CPU/TO 31W2-2T-122-1
Table 3-21. String, Connector and Logic List Column Definitions
The following entries are a composite list of all column titles used in Connector, String and Logic
Consists of a sequence number for each wire.
The originating end of a wire.
Any type of originating point, plug, receptacle, etc.
Exact originating point of the respective connector.
Designations are unique.
a. SHXXXX indicates the junction of a shield and a pigtail, the four right-most digits are the wire
identity of the shielded wire.
b. JCT indicates a common point of two or more wires.
c. Jacket is the terminology used when describing the line that defines the identification of a shielded
The terminating end of a wire.
Same as FROM connector.
Same as FROM connector.
Associates a wire of a group such as twisted pair, shielded pair, jacket, pigtails and center
conductor will be shown as a common group.
A 3-digit code for wire type and gauge or bus bar.
A color according to standard color code.
a. Base stripe tracer.
b. Strip. Tracer 1 and Tracer 2 if the left-most digit is other than 9 and the two right-most positions are
not black and not equal. The base color is understood to be white.
A number stamped on wire or sleeving to differentiate it from another. Not used in all wiring.
Spc Inst Misc
A code which indicates that a wire must be given special attention as follows:
a, Direct routing with no service loops or harnessing.
b. Not used for maintenance.
c. Not used for maintenance.
d. Two wires terminating in one device.
e. Not used for maintenance.
f Refer to Signal Description column for this line.
g. This connection does not go direct to the TO connector but intersects a wire going to the TO con-
h. Not used for maintenance.
i. Junction point for MLB (multiple laminate board; i.e., printed circuit cards) connections.
j. Designates a bus reference point.
k. through z. not used for maintenance.
An alphanumeric signal name, mnemonic, where feasible, which identifies one specific function
SPP denotes an available termination.
SPW denotes a non-functional wire which is terminated at one or both ends.
SPF denotes an unwired termination which has assigned use.
SPO denotes a spare output of a circuit.
DNW indicates that a termination may not be wired.
SPA denotes an unassigned circuit, one of a group on a circuit card.
SPI indicates a spare input of a circuit card.
SPG indicates an unassigned logic gate on a circuit card.
SPR indicates a spare resistor.
SPD indicates an unassigned diode of an assigned gate.
Not used for maintenance.
A mnemomic name assigned to each gate of an element.
An OR function composed of one or more factors.
A specific input to a logic gate or active element.
Ckt. or Chip Type
Denotes a specific circuit card type.
Denotes a specific circuit on an circuit card.
Denotes the current drain in milliamperes of a specific circuit or voltage.
Test Points AND
Denotes the specific input test point on a circuit card.
Denotes the specific output test point on a circuit card.
An English description or name of a signal or voltage.
- A letter-number combination to show the ECO level of the specific wire list record.