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Network Time Servers
CoBox NTP-E1
 

Highlights
Specifications
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The CoBox Network Time Servers are compact and stand-alone devices which can receive standard world time information from a GPS source and make that timing information available to other network nodes. Each CoBox Network Time Server supports NTP and time/udp protocols for communicating time information to other devices. Models supporting Ethernet or Token Ring are available.

Connects a GPS time source to an Ethernet or Token Ring network
Support for NTP and time/udp protocols
RS-232 and RS-422 serial standards supported for connecting antennae
Models available with GPS antenna and cable included
Serial and Telnet management
Flash ROM for easy software upgrades

Routing Protocols TCP/IP (RIP and Static Routing)
IPX (RIP/SAP and Static Route/SAP-based routing)
Supported Protocols ARP, IP, UDP, ICMP, SNMP, TCP, TFTP, NTP, and time/udp
Network Interface NTP-E1
RJ45 (10BASE-T) and AUI Ethernet
Serial Interface DB25 RS-232/RS-422 serial port Pulse input to support 1pps Antenna signals (approx 100uS accuracy)
Data Rates Serial speeds up to 115Kbps
NTP Server Accuracy Less than one microsecond, depending on network load and GPS source accuracy
Management Serial and Telnet login
Software Flash ROM standard: downloadable via TFTP or over serial port
Diagnostic LEDs Transmit Data
Receive Data
Good Link
Collisions
Fault
Receiver Status
Compatibility Token Ring: 802.2 LLC
Physical Dimensions
(H x W x D)		 1.57 x 6.10 x 7.00 in
(4.0 x 15.5 x D 18.0 cm)

Weight: 0.0 lbs (.5 Kg)
Shipping Dimensions
(H x W X D)		 4.0 x 13.25 x 7.25 in
(10.15 x 34.0 x 19.0 cm)

Weight: 0.0 lbs (1.75 Kg)
Power Requirements 16VAC 1000mA
(External adapter included)
Power Consumption: 9 Watts
Environmental Operating Temperature
5 to 50°C (41 to 122°F)

Storage Temperature
-40 to 66°C (-40 to 151°F)
Agency Approvals UL (pending)
Warranty 5-year limited warranty

Part Number Description
NTP-E1-01 Network time server, 1 DB25 (RS-232/RS-423/RS-485) serial port, AUI (10BASE5) and RJ45 (10BASE-T) network ports, diagnostic LEDs, Installation Guide, external 110VAC power supply
NTP-E1-02 Same as above with 230VAC power supply
NTP-E1-03 Same as above with European 2-prong 230VAC power supply
NTP-E1A-01 Network time server, 1 DB25 (RS-232/RS-423/RS-485) serial port, AUI (10BASE5) and RJ45 (10BASE-T) network ports, GPS antennae and cable included, diagnostic LEDs, Installation Guide, external 110VAC power supply
NTP-E1A-02 Same as above with 230VAC power supply
NTP-E1A-03 Same as above with European 2-prong 230VAC power supply
Datasheet (PDF)
Installation Guide (PDF)
Latest Firmware
Networking Tutorials
Glossary

 
 

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