NTP Master Clock
NTP Master Clock
- QCN-1000
The QCN-1000 is a high-end, rack-mounted master clock equipped with advanced time server capabilities.
It supports both NTP synchronization and traditional DC24V 30-second polarized signal output for slave clocks, making it ideal for public facilities such as schools, hospitals, and transportation hubs.
・Dual Time Signal Output: Sends time signals to both NTP clocks and slave clocks (DC24V 30-second polarized signal).
・High NTP Performance: Handles up to 1500 NTP packets per second, enabling synchronization with various networked systems including security infrastructure.
・Slave Clock Control: Drives up to 120 slave clocks across 4 circuits.
・GPS Synchronization: Optional GPS receiver (GNS-1000) enables precise time correction via satellite.
・Flexible Synchronization Options: Supports RS-422 serial (Just Time Format), NTP server synchronization, and more.
・Compact Design: Rack-mountable 1U size for easy integration into system racks.
・Rich Interfaces: Includes 1PPS, 10MHz, IRIG-B, RS-232C, RS-422, USB, and Ethernet.
・Redundancy Support: Easily build a redundant system by configuring 2 to 4 units.
【Specifications】
Operating Temperature
0°C to 60°C (Humidity: 10% to 90%)
Power Supply
AC 90V–240V, 50/60Hz, 0.5A
Dimensions
W483 × H43.6 × D125.5 mm (EIA 1U)
Material
Aluminum
Weight
Approx. 1.8 kg
Accessories
AC power cord ×1, Rack mounting brackets (JIS/EIA)
Optional Device
GNS-1000 GPS Receiver
【Functions】
Synchronization Accuracy
±1ms (with GPS), ±10ms (with serial time signal)
Free-running Accuracy
±10ms/day (at 20°C ±5°C, after 12-hour sync)
Sync Timing
Immediate synchronization
NTP Packet Handling
Up to 1500 packets/second
Time Protocols
NTP v4 (RFC5905, RFC1305), SNTP (RFC2030), TIME (RFC868), DAYTIME (RFC867)
Network Services
SSH, FTP, SNMP, SMTP, DHCP, DNS, DHCPv6, ECHO, HTTP
LAN Interface
10Base-T / 100Base-TX (IEEE802.3), RJ-45 (shielded cable only)
Display
LCD (16 characters × 2 lines), LED ×3 (Power, Alarm, Sync status)
Configuration Method
Web GUI via LAN connection
【Input/Output Interfaces】
LAN
:Ethernet 10/100Mbit
1
RJ-45
PC Terminal
:For configuration
1
D-Sub 9-pin (RS-232C)
USB Port
:Firmware upload, config file download
1
USB Type-A
DCF I/O & GPS
:GPS receiver (GNS-1000) connection
1
Terminal block
RS-485/RS-422 I/O
:Selectable input/output
1
Terminal block
RS-232C Output
:Serial time output
1
Terminal block
IRIG-B Output
:AFNOR-AC, IRIG-B12x, DCF-FSK
1
BNC
1PPS Output
:50Ω, 2.5V pulse
1
BNC
10MHz Output
:50Ω, 2.5V signal
1
BNC
Slave Clock Signal Output
:30-sec polarized signal, max 30 units/system
4
Terminal block
Alarm Output
:30W (60VDC or 1A), 60VA (30VAC or 1A)
1
Terminal block