NavCom Alfa-2 and Alfa-6: two power supply inputs or DC/DC converter
Sources NavCom Alfa-2 and Alfa-6 They are selected for different primary networks. Alfa-2 is considered for inputs 220 V AC and 24 V DC; Alfa-6 is considered for power supply conversion from a 24 V DC network. You can't attribute the same AC/DC switching to both.
ALFA-2: two entrances, automatics and fuse
Alfa-2 is a pulsed stabilized source with inputs of 220 V AC and 24 V DC. The manufacturer's table shows the output of 13.5 V and the maximum output current of 10 A. The load is assessed by the joint operation of the devices, including radio transmission. Battery circuitry and charge functions are not defined by brief description: they are consistent with the precise configuration manual and the design.
ALFA-6: conversion from 24V DC network
Alfa-6 is a pulsed DC/DC source. The manufacturer specifies a direct current input of 24 V, an output of 13.5 V and a maximum output current of 12 A. This is not a direct 220V AC input, nor is it an automatic selection scheme between two primary networks. When replacing the previous Alfa-4, installation, load and applicable configuration are further verified; the name of the successor does not guarantee the interchangeability of all connections.
When to take an Alf
- For Alfa-2, the AC 220V and DC 24V inputs, transition conditions and allowable load are indicated.
- For Alfa-6, the DC 24V network and consumers with a permissible power supply of 13.5V are indicated.
- Reserve scheme, installation and documents are agreed for a specific project.
The closest alternatives to the task from the same shelf - SIGMA-15 SK and SIGMA SK-35They have an output of 13.8 V and a galvanic interchange - a separate technical guide about them Sigma-15 SK and Sigma SK-35. General scheme of power supply marine radio communication - in the article Power supply unit and charging for marine radio communications.
Frequent Questions About Alpha
What happens when the 220V network goes down?
The Alfa-2 is powered by a second DC 24V input without AC-power supply. The Alfa-6 has DC input and is not a standalone switch between 220V AC and 24V DC. Behavior of the post and reserve agreed on the project.
How is Alfa-6 different from Alfa-2?
The main difference is the entrance scheme. Alfa-2 receives AC 220V and/or DC 24V; Alfa-6 receives DC 24V. The manufacturer indicates an output of 13.5 V, a maximum output current of 10 A for Alfa-2 and 12 A for Alfa-6.
What do I need to confirm?
Documents are requested for the precise configuration of the proposed block and project requirements. The old certificate or generic model name does not automatically cover all survey questions.
Where to watch the currents and voltages of Alfa-6?
Manufacturer documentation and the applicable configuration manual. For selection, you need a primary network and a consumer statement with their permissible power supply and operating modes.
Manufacturer's documentation: Alfa-2, Alfa-6Configuration and parameters are agreed in quotation.
Alfa-2 and Alfa-6 in Marine Repair Statement
For a ship repaired in Samara, request for an Alfa-2 or Alfa-6, start with the previous source and customer list. If the supply receives equipment in Syzran, separately indicate the actual installation location and the stored parts of the scheme. For work on the Volga and Saratov reservoir, the district supplements marine initial data, but does not determine the choice between different input networks. The full configuration, documents and connection volume are fixed in quotation; the new scheme is agreed on a specific installation.
