_
R (Ref. Fig. 039) Provides the electrical interface (Channels A) between the ECU (receptacle J1) and:
- the 6 o'clock tube bundle junction box where it connects to the bulkhead connector CL111 from harness CJ11L (Channels A)
- the 6 o'clock tube bundle junction box where it connects to the bulkhead connector CR111 from harness CJ11R (Channels A).
6 Harness HJ12
_
R (Ref. Fig. 040) Provides the electrical interface (Channels B) between the ECU (receptacle J12) and:
- the 6 o'clock tube bundle junction box where it connects to the bulkhead connector CL121 from harness CJ12L (Channels B)
- the 6 o'clock tube bundle junction box where it connects to the bulkhead connector CR121 from harness CJ12R (Channels B).
7 Harness HJ13
_
R (Ref. Fig. 041) Provides the Cr and Al thermocouple junctions interface, (Channels A and B) between the ECU (receptacle J13) and:
- receptacle connector (Channels A and B) of engine oil temperature sensor
- receptacle connector of fuel flometer
- the 6 o'clock tube bundle junction box where (one of its branches) connects to the bulkhead connector C135 from harness CJ13 (Channels A and B).
8 Harness DPM
_
R (Ref. Fig. 042) Provides a discrete electrical interface between the master magnetic chip detector and the pop-out visual indicator.
NOTE : This harness connects in series in the electrical loop
____ which detects the magnetic particles in the oil system. The detection loop is supplied with a dedicated 28VDC line from the aircraft network.
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**ON A/C 001-049, 051-062, 101-105, 151-152, 201-204,
Q. Identification Connector
(1) General The mobile connector transmits the following electric coded signals to the Electronic Control Unit (ECU):
- Engine serial number
- Engine family
- Engine bump rating It is coded in the factory during installation of new engine, and is inseparable from the engine. It is connected to the J14 ECU fixed connector.
(2) Description (Ref. Fig. 043) This connector consits of a certain number of parts that cannot be disassembled and inseparable comprising of the following:
- A mobile connector incorporating the following items: 31 sockets (21 active). A knurled portion to tighten the connector. a rear body incorporating the identification circuit connected to it.
- A metallic braid connected as follows:
Riveted on the rear end of connector.
Screwed and lead sealed to the engine.
(3) Operation The connector permits or stops the currents generated by the ECU between the different connector contacts. The resulting signals are decoded by the ECU. The information (Rating, Bump Option, PMUX, N1 TRIM capability) will be available in menu mode.
R **ON A/C 063-099, 106-149, 153-199, 205-299, 301-399, 401-499,
Q. Identification Connector
(1) General The hybrid identification connector provides the Electronic Control unit (ECU) with the engine configuration for proper engine operation through the following electric coded signals:
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Identification Connector R Figure 043 (SHEET 1)
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Identification Connector R Figure 043 (SHEET 2)
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(a) using electrical fuse technology which provides irreversible coding:
- thrust rating/bump
- connector type (5A or 5B)
(b) using push-pull connections which provides reversible coding:
- engine configuration (5B or 5B/P)
- system configuration (engine combustor type): SAC, DAC 1, DAC 2 FN, DAC 2 COMB (DAC 2 PIP)
- N1 trim level: trim from 0 to 7
- overthrust protection: Thrust Control Malfunction Accommodation shutdown function enable/disable
- Core Chevron Nozzle installed / not installed status (N1K adjuster for acoustic Core Chevron Nozzle / no adjustment for basic nozzle exhaust)
- monitoring parameters: with or without PMUX status 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM 发动机燃油和控制 ENGINE FUEL AND CONTRO(99)
