Overview
Specifications & Details
Datasheets & Downloads
Videos

Wide Input Bandwidth
Input Isolation
Automatic & Manual Changeover
Transformer Coupled Outputs
Twenty four Outputs
Front Panel Status Indicators
Fault Discrete Inputs
Compact 1U, 19” rack mount

Manufactured By: Brandywine Communications

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The Brandywine Communications Model PDU-240 offers the user modern, often requested and reliable pulse distribution features. The base unit outputs twenty-four 1PPS outputs that are transformer-coupled from the rear panel connectors to the transfer switch. Each output is a faithful reproduction of the pulse input.

A three-position front panel switch chooses automatic operation or may be used to manually select one of the two input sources. When the AUTO mode is selected the AUTO indicator will be illuminated and Input A will be used if it is available. Should Input A fail Input B will be chosen automatically. Indicators show the status of the inputs and which input has been selected.

Each of the twenty-four outputs is monitored. Should an output fail a group alarm Fault indicator will illuminate.

Pulse Inputs

Number of Inputs	2
Connector Type	BNC
Input Amplitude	2.5 to 10 V
Input Impedance	50 / 1000 link selectable
Pulse	1ppm through 10MPPS

Fault Discrete Inputs

Number of Inputs	2
Connector Type	DB9
Input Level	Relay contact closure or TTL

Pulse Outputs

Pulse	1ppm through 10MPPS
Number of Outputs	24
Connector Type	BNC
Output Amplitude	3.3V, 5V, 10V
Isolation	Transformer coupled
Output Impedance	50 ohms
Output Protection	Short-circuit proof

Fault Sense and Transfer

Modes	Automatic and Manual
Manual	Selects input A or input B
Automatic	Provides automatic switch from A to B should input A fail

Indicators

Power	Green LED
Input A-B Selected	Green LEDs, two
Input A-B Available	Green LED's, two
Fault	Red

Environmental

Temperature
Operating	0 to +50°C
Storage	-40 to +85°C
Humidity	To 95% non-condensing

Physical

Dimensions	19 in. Rack Mount, 1/73 in. high (1U), 14.5 in. deep
Weight	7.5 lb. typical

Power

Power	115/230 VAC, 50/60 Hz
Power Consumption	<25 W

EMC

EMC Emission	To EN50081-1 as EN55022
EMC Immunity	To EN50082-1 as EN1000-4-2 ESD, IEC 801-3 HF Field, IEC 801-4 Burst

Brandywine PDU-240 Datasheet.pdf

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Brandywine - PDU-240 24 Output Pulse Distribution Unit