Name: Yokogawa A1BR4D-05 / A1BA4D-05 / A1BD5D-05 Signal Terminal Boards
Brand: YOKOGAWA
SKU: 2932319
Price: 1 USD
Availability: InStock

Section 01

Product Overview

Yokogawa A1BR4D-05 / A1BA4D-05 / A1BD5D-05 are signal terminal boards for CENTUM VP field I/O, but they terminate different signal families. A1BR4D-05 is the sixteen-point RTD board, A1BA4D-05 serves analog I/O modules, and A1BD5D-05 provides thirty-two digital termination points.

The cable path of A1BR4D-05 / A1BA4D-05 / A1BD5D-05 follows the associated I/O module rather than a universal pinout. A1BR4D-05 connects to AAR145 through AKB335, A1BA4D-05 uses the analog-module cable arrangement, and A1BD5D-05 connects through the ATD5A and specified AKB331 or AKB337 cable path.

Electrical boundaries also differ across A1BR4D-05 / A1BA4D-05 / A1BD5D-05. The RTD and analog boards are passive field-signal termination interfaces with their own insulation ratings, whereas A1BD5D-05 includes a 24 V DC external-power path and READY-contact circuitry for its digital arrangement.

Section 02

Technical Specifications

Specification	A1BR4D-05	A1BA4D-05	A1BD5D-05
Brand	Yokogawa
Product type	RTD terminal board	Analog terminal board	Digital terminal board
Termination style	Pressure clamp
Points	16	8 or 16 by module/cable arrangement	32
Associated modules	AAR145	AAI135/835, AAP135, AAI141, AAV141/144, AAB841, AAI841, AAV544, AAI143/543	ADV151/551 or ADV161/561
Primary cable path	AKB335	ATK4A + KS1 or module-specific analog cable	ATD5A + AKB331 or two AKB337
External supply	Not required by board	Not required by board	24 V DC ±10%
Insulation resistance test	10 MΩ or more at 200 V DC	10 MΩ or more at 500 V DC	10 MΩ or more at 500 V DC
Dielectric withstand	200 V AC for 1 minute	500 V AC for 1 minute	2 kV AC for 1 minute between power and READY circuits
Approximate weight	0.3 kg	0.3 kg	0.7 kg
Explosion protection	None
Order-code suffix	-05

Section 03

Signal Family and Cable Routing

A1BR4D-05 / A1BA4D-05 / A1BD5D-05 look similar as terminal-board products, yet each one belongs to a distinct field-signal and cable chain.

RTD chain

A1BR4D-05 terminates sixteen RTD points for an AAR145 module. The AKB335 cable carries those resistance-sensor connections between the terminal board and the I/O module.

Analog chain

A1BA4D-05 terminates analog signals. Its point count and cable arrangement follow the connected analog module, including eight-point ATK4A/KS1 combinations and supported sixteen-point modules.

Digital chain

A1BD5D-05 provides thirty-two digital points. ADV151/551 and ADV161/561 arrangements use the specified ATD5A and AKB cable combinations rather than the RTD or analog cable path.

Section 04

Power and Insulation Separation

The external-power and test ratings of A1BR4D-05 / A1BA4D-05 / A1BD5D-05 follow their signal circuits. These values must remain attached to the correct board.

RTD insulation

A1BR4D-05 uses the lower RTD-circuit test levels: 10 MΩ or more at 200 V DC and a 200 V AC one-minute withstand test.

Analog insulation

A1BA4D-05 specifies 10 MΩ or more at 500 V DC and a 500 V AC one-minute withstand test for the documented analog circuit boundary.

Digital power boundary

A1BD5D-05 accepts 24 V DC ±10% external power and specifies a 2 kV AC one-minute withstand boundary between its power and READY-contact circuits.

Section 05

Frequently Asked Questions

Can A1BR4D-05 / A1BA4D-05 / A1BD5D-05 replace one another because they share a terminal-board format?

No. A1BR4D-05 / A1BA4D-05 / A1BD5D-05 serve RTD, analog and digital signal chains respectively, with different modules, cables and electrical boundaries.

Which board in A1BR4D-05 / A1BA4D-05 / A1BD5D-05 is intended for AAR145?

A1BR4D-05 / A1BA4D-05 / A1BD5D-05 include one RTD option: A1BR4D-05 connects sixteen RTD points to AAR145 through AKB335.

Why can the point count vary for A1BR4D-05 / A1BA4D-05 / A1BD5D-05?

Within A1BR4D-05 / A1BA4D-05 / A1BD5D-05, A1BA4D-05 can serve eight- or sixteen-point analog arrangements depending on the associated module and cable, while the RTD and digital boards have their stated fixed counts.

Which member of A1BR4D-05 / A1BA4D-05 / A1BD5D-05 requires 24 V DC external power?

A1BD5D-05 is the externally powered digital board in A1BR4D-05 / A1BA4D-05 / A1BD5D-05 and uses 24 V DC ±10% for the documented circuit arrangement.

Should one insulation test value be applied to A1BR4D-05 / A1BA4D-05 / A1BD5D-05?

No. A1BR4D-05 / A1BA4D-05 / A1BD5D-05 have board-specific insulation and withstand values; the RTD, analog and digital ratings must not be exchanged.

What makes an A1BR4D-05 / A1BA4D-05 / A1BD5D-05 enquiry unambiguous?

State the selected member of A1BR4D-05 / A1BA4D-05 / A1BD5D-05, associated I/O module, point count, terminal cable and required quantity rather than requesting only a generic terminal board.

Section 06

Moore Automation Advantages

Moore Automation

https://www.mvme.cn

Moore Automation combines exact-code handling with document coordination and shipment records for industrial automation enquiries. Related variants can be compared without dropping the suffix that distinguishes their electrical construction.

Exact identifiers retained

Variant lists kept separate

Requested documents organized

Packing and tracking references linked

Product Name	Yokogawa A1BR4D-05 / A1BA4D-05 / A1BD5D-05 Signal Terminal Boards
Item NO.	2932319
Weight	0.1 kg = 0.2205 lb = 3.5274 oz
Category	YOKOGAWA
Brand	YOKOGAWA
Creation Time	2026-11-13

Yokogawa A1BR4D-05 / A1BA4D-05 / A1BD5D-05 Signal Terminal Boards Item NO.: 2932319

Yokogawa A1BR4D-05 / A1BA4D-05 / A1BD5D-05 Signal Terminal Boards

Product Overview

Technical Specifications