Seiko W620 User Manual download pdf (Page 2)

QCG-100

■ QCG-100 is a master clock which is capable of receiving the precise time information from GPS (Global Positioning

System) operated by the U.S. and can retain a high-accuracy in the internal clock at all times.

■ Exclusive GPS antenna with receiver unit (GPS-100) is available separately to make a time correction for the

internal clock in the QCG-100 periodically.

■

QCG-100 is capable of making analog secondary clocks activate directly and synchronizing them with a precise time.

■

QCG-100 is capable of generating time data (in accordance with RS-422) for digital secondary clocks and other computer systems.

■ Automatically time synchronization with GPS ( Global Positioning System).

■ Time Accuracy when synchronized by GPS signal is within ±5ms.

■ Exclusive GPS antenna with receiver unit can be purchased separately.

■ High-accuracy crystal clock inside (Accuracy daily rate : within±0.1s).

■ Rack-mounting type complied with EIA (Electronic Industries Alliance) Standard.

■ Maximum 110pcs. of secondary clocks can be activated.

■ Both Two hands and Three hands secondary clocks can be activated.

■ Serial data signal output (RS-422) is available to synchronize digital clocks and so on.

■

Liquid Crystal Display (LCD) with dimmer function for monitor clock in 3 steps (off-mid-hi) on the front panel.

■ Daylight saving time and leap time can be set by key input.

■

Time adjustable with Time Server (SNTP) through LAN (RJ45) as an optional extension system (QCG-100N).

■

Signal auto changer unit QCG-100SC is available as an option for the dual master clock (QCG-100) operation.

MASTER CLOCK

(GPS Synchronization)

RACK-MOUNT TYPE

SPECIFICATIONSCONTENTS

Power supply

MASTER

CLOCK

Operational temperature and humidity range

Dimensions

Weight

Material

50W

Controlled by 2 wires (only clockwise)

(Max. 110pcs. of analog secondary clocks can be connected, together with analog secondary clocks of 30-sec. signal.)

Controlled by 2 wires (only clockwise)

(Max. 110pcs of analog secondary clocks can be to connected, together with analog secondary clocks of 1-sec. signal.)

Data input : Serial data (in accordance with RS-422)

1PPS input : Received by 2 wires

Power supply : DC 5V (powered by QCG-100)

Sealed : 1 wire

＊

To be connected the exclusive GPS antenna with receiver unit (GPS-100). Available separately.

＊

To be connected with 6 sealed wires cable (as an option).

RS-422 : Time information (Year / Month / Day / Date / Hour / Minute / Second)

in SEIKO format shall be sent every second.

32.768kHz

within

0.1s / day (0

℃

∼＋

℃

)

within

5ms

Every 10 min.

16digits 2 lines with back light

AC85

∼264V, 47∼63Hz

8keys

When powering on

Automatic setting by GPS or manual setting by key input

When operating

Periodical and automatically synchronization by GPS signal or manual setting by key input

Setting for Time difference

Manual setting by key input

＊

Against UTC, time difference from -12h to +14h can be set by minutes.

Manual setting by key input

Power input

Non-fuse breaker

Internal circuit

Fuse 5A

Secondary clock signal output

Non-fuse breaker

If this product detects a decrease in voltage in internal circuit and NFB in secondary clock signal output, the ALARM LED lamp lights up.

℃

∼＋

℃

∼

90%

with no dew condensation

QCG-100 : W480×H88×D280mm (excluding protruded portion)

GPS-100 : W142×H67×D110mm (with a 1m cable)

QCG-100 : Approx. 3.5kg GPS-100 : Approx. 420g

Steel with pearl-gray painted

Power consumption

Input /

Output Signals

1-sec. polarized signal

30-sec. polarized signal

GPS I/F

Serial data signal output

Crystal oscillator frequency

Time accuracy

Time accuracy when synchronized by GPS signal

Frequency of synchronizing with GPS signal

LCD display

Operation unit

How to adjust the time

Daylight saving time

Leap second

Over current protection

Alarm detection

480

280

44.5

(

297

)

420

460

0-SEC ADJ

ALARM

ENTER

QCG

100

GPS

100

＊

GPS-100 is available separately.

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Seiko W620 User Manual Page 2

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