2 Stub Box Type Dual Terminated Bus Coupler

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2 Stub Box Type Dual Terminated Bus Coupler

PART NUMBER : DE8232

Each stub has a transformer with a 1.41:1 ratio, 59 ohm 2W resistors are used as stub resistors.

2 Stub Box Type Dual Terminated Bus Coupler

Overview

The MIL-STD-1553 communication bus electrically connects multiple devices to facilitate reliable communication in various platforms, including both military and civil applications.

These bus configurations are built using various components such as cables, bus couplers, terminating resistors and connectors. In a data bus structure, bus couplers play a role in providing shielding, isolation resistance and transformer interfaces for connection points known as stubs. In this respect, bus couplers are the commercial off-the-shelf (COTS) solutions for easier and more reliable wiring.

DEICO bus couplers are designed to provide an economical solution for both platform and professional benchtop test systems. The product offers users the opportunity to have MIL-STD-1553 bus networks through fast delivery options at a fraction of the cost.

Specification

Electrical

Specification	Explanation
COMMON MODE REJECTION	-45.0dB MAX @ 1.0MHz
DROOP	20% MAX (250kHz)
OVERSHOOT & RINGING	± 1.0V PEAK (250kHz SQUARE WAVE WITH 100ns)
STUB VOLTAGE	1.0V TO 14.0V P-P, LINE TO LINE, SIGNAL VOLTAGE, TRANSFORMER COUPLING
INPUT IMPEDANCE OF BUS	3000 ΩMIN. (75kHz – 1.0MHz), STUB WITH OPEN CIRCUIT

Mechanical

Specification	Explanation
ENCLOSURE MATERIAL	ALUMINUM 2mm THK.
MOUNTING PLATE MATERIAL	ALUMINUM 2mm THK.
FINISH	WHITE CHROMATE
CONNECTORS	BJ770
RECOMMENDED MATING CONNECTOR	PL75
RECOMMENDED STUB TERMINATION	DE8608
RECOMMENDED BUS TERMINATION	DE8607

Environmental

Specification	Explanation
HIGH TEMPERATURE OPERATING	MIL-STD-810G_CHG-1 METHOD 501.6 PROCEDURE II, +125°C
LOW TEMPERATURE OPERATING	MIL-STD-810G_CHG-1 METHOD 502.6 PROCEDURE II, -55°C
HIGH TEMPERATURE STORAGE	MIL-STD-810G_CHG-1 METHOD 501.6 PROCEDURE I, +125°C
LOW TEMPERATURE STORAGE	MIL-STD-810G_CHG-1 METHOD 502.6 PROCEDURE I, -55°C
VIBRATION	MIL-STD-810G_CHG-1 METHOD 514.7 PROCEDURE I - CATEGORY 12, 15Hz TO 2000Hz, (Performance: W0=0.040 and A=0.02, Duration: half hour/axis), (Endurance: W0=0.053 and A=0.02, Duration: 1 hour/axis)
SHOCK	MIL-STD-810G_CHG-1 METHOD 516.7 PROCEDURE V (40g, 11ms, Terminal Peak Sawtooth, Number of shocks: 12, two in each direction of three axes)
RAIN	MIL-STD-810G METHOD 506.5 PROCEDURE I