4CH 100MHz VF CONVERTER(Rack Mount Type)
VF4-1H-02
USER'S MANUAL#4491(ver.0) 2024.06.05

APPLICATION OF ELECTRONIC DEVICESTSUJI ELECTRONICS CO.,LTD3739 Kandatsu-machi Tsuchiura-city
Ibaraki-Pre 300-0013 Japan
Phone +81-(0)29-832-3031
Fax +81-(0)29-832-2662
URL https://www.tsuji-denshi.co.jp/
E-mail info2@tsuji-denshi.co.jp

4CH 100MHz VF Converter （AC220V version） Rack Mount Type
VF4-1H-02
User's Manual [Rev.0]
1. Feature
VF4-1H-02 is the 100MHz 2CH V-F Converter that is the Rack Mount type, and it supports AC220V power supply.
It has the four-levels amplification factor switch and the polarity selector switch.
VF4-1H-02 is easy to be monitored.
i.e., the over-range and polarity are displayed on LED and also outputted as open-collector outputs.
Therefore, V-F conversion is always performed at the optimum conditions.
2. Specification
Channels

4CH

Input Range-10V/-5V/-2.5V/-1V/+1V/+2.5V/+5V/+10V

Input

Single-end

Input Impedance

1MΩ

Output Range

100MHz/50MHz/25MHz/10MHz

Output

TTL level※ Please use 50Ω termination to reduce the reflected wave.

Conversion Accuracy±0.01% FS

Inpur Sampling Frequency

1MHzResponse

10μs or less

Input Connector

BNC connector

Output Connector for Frequency

LEMO connector (equivalent to EPL00250NTN)

Over-Range output

Open collector (normaly close), isolatedOver-Range output Connector

BNC connector

Power supply

AC220V

Case

EIA-2U: 88H x 482W x 430D

3. Before using
Before using, please power about 2 hours on for a warm-up.
The frequency deviation becomes large, if warm-up has not been made.

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4. Usage
4-1. Front panel③④① ②㉔ ㉕㉑㉖⑬㉒㉗⑭㉓㉘⑩ ⑪⑦⑫⑧⑨⑰⑱⑲ ⑳⑤ ⑥⑮ ⑯①

CH1 Output connector (frequency, LEMO, LVTTL level)②

CH2 Output connector (frequency, LEMO, LVTTL level)③

CH1 Input connector (voltage, BNC)④

CH2 Input connector (voltage, BNC)⑤

CH1 Scale over LED
LED lights on when the input level exceeds conversion level.

⑥

CH1 Input polarity LED
LED lights on if the voltage input polarity is different from the setting.

⑦

CH1 Input voltage range select SW
Select input voltage range.

⑧

CH1 Output frequency range select SW
Select output frequency range.

⑨

CH1 Polarity select slide-SW
NOM: (+), REV: (-)⑩

CH2 Scale over LED⑪

CH2 Input polarity LED⑫

CH2 Input voltage range select SW⑬

CH2 Output frequency range select SW⑭

CH2 Polarity select slide-SW⑮

CH3 Output connector (frequency, LEMO, LVTTL level)⑯

CH4 Output connector (frequency, LEMO, LVTTL level)⑰

CH3 Input connector (voltage, BNC)⑱

CH4 Input connector (voltage, BNC)⑲

CH3 Scale over LED⑳

CH3 Input polarity LED㉑

CH3 Input voltage range select SW㉒

CH3 Output frequency range select SW㉓

CH3 Polarity select slide-SW㉔

CH4 Scale over LED㉕

CH4 Input polarity LED㉖

CH4 Input voltage range select SW㉗

CH4 Output frequency range select SW㉘

CH4 Polarity select slide-SW

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4-2. Rear panel

①

①

②

③

⑤

④

⑥

CH1 Scale over output connector (BNC)
Open collector output. It is isolated from the internal circuit.
Output becomes off if the voltage input is over than the setting.

(normaly close)②CH2 Scale over output connector (BNC)③

CH1/CH2 Changeover switch for choosing isolation or common between
NIM GND and the internal circuit GND.
FLOTING: isolation, G.COMMON: common④

CH3 Scale over output connector (BNC)⑤

CH4 Scale over output connector (BNC)⑥

CH3/CH4 Changeover switch for choosing isolation or common between
NIM GND and the internal circuit GND.
FLOTING: isolation, G.COMMON: common

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