Specifications; Communications - Protocol; Communications - I/O; Power Requirements Ac Model - Symmetricom ND-CLK User Manual

SPECIFICATIONS

Communications – Protocol
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DHCP (enabled by default) configuration, or via Static IP mode entry.
Network configuration: IP address, Netmask,
o
Gateway (Router - DHCP Option 03),
o
Primary and Secondary DNS (Domain Name Server - DHCP option 06)
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Primary and Secondary NTP Servers (Network Time Protocol Server - DHCP Option 042 )
o
Time Zone Offset (Time Offset – DHCP Option 02) – Note: not enabled by default
o
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IPV4
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SNTP /NTP version 4 – UDP, port 123 (default)
Unicast [Query] (default), and broadcast, multicast modes.
o
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Telnet – TCP, port 23 (default)
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Control/WinDiscovery protocol – UDP, port 6163
Communications – I/O
Ethernet (10mbps) ................................................ RJ45, 10baseT
Length of communication cable (Cat5/5e) ........ 100 meters maximum

Power Requirements AC Model

AC Input Voltage ................................................ 100-240 VAC +/-10% (90-264VAC), 47-63 Hz
AC Input Connector ............................................. Universal IEC input connector
AC power consumption........................................ <10 W
Protection............................................... Built in fuse, output power limiting, over voltage, and
Caution: there are no user serviceable parts inside the ND-CLK.
Please contact the factory if you require servicing or repair.

Power Requirements POE Model

Power Over Ethernet Input Voltage .................... +48VDC per IEEE802.3af
Mode A ............................................................. +48VDC on spare pins 4&5, return on pins 7&8
Mode B ............................................................. +48VDC & data on pins 1&2, return on pins 3&6
POE input connector ............................................ RJ45
POE power consumption...................................... <12.95 W, class 0
Protection.... ......................................... Provided by the IEEE802.3af standard.
Length of network cable (Cat5/6)......................... 100 meters maximum, final run with POE

Internal Battery Circuit

MODEL
ND-CLK
Rechargeable battery and recharging circuit requires no maintenance and retains all configuration settings
for two weeks (minimum holdover) without applied external power. Note: clock hand alignment settings
are maintained in non-volatile flash and are not affected by either loss of power or internal battery voltage.

Physical

Size: 12.5" (31.8cm) Round Black Metal Case with 12" Face, 4.25" (10.8cm) high, polycarbonate lens.
Weight : 7.6 lbs. (3.45kg)
Operating/Storage Temperature & Humidity
Operating Temperature ............................................ 0 to +50°C
Relative Humidity .................................................... Up to 90% (non condensing @ 25°C)
Storage Temperature ............................................... -40 to 70°C
ND-CLK User Manual- Rev 1.0.1 - Sep-08
short circuit protection.
Maintenance Free Rechargeable Battery
3V,17 mAh, Coin Cell
Rechargeable Manganese Lithium
Panasonic ML1220/V1A
40
®
Symmetricom , Inc