User manual
Masterclock NTDS Series User Manual – v2 – December 2012
23
POWER REQUIREMENTS
PoE option
Power over Ethernet input voltage
.............................................. +48VDC per IEEE802.3af
Mode A: ..................... +48VDC on spare pins 4 and 5,
return on pins 7 and 8
Mode B: .................+48VDC and data on pins 1 and 2,
return on pins 3 and 6
PoE input connector ........................................... RJ45
PoE power consumption..................... < 15 W, class 0
Protection ..... . Provided by the IEEE802.3af standard
Length of network cable (Cat5/6) ................. 328 feet
(100m) maximum
AC option
AC Input Voltage
.............. 100-240 VAC +/-10% (90-264VAC), 47-63 Hz
AC Input Connector ..................... IEC input connector
AC power consumption ...................................... 10 W
Protection ........... Built in fuse, output power limiting,
over voltage and short circuit protection.
Internal Battery Circuit -
Maintenance Free Rechargeable Battery
A rechargeable manganese lithium coin cell battery
(Panasonic ML1220) and recharging circuit requires no
maintenance and retains all configuration settings for
two weeks (minimum holdover) without applied
external power.
Operating/Storage Temperature and Humidity
Operating temperature ........ 32˚ to 140°F (0˚ to 60˚C)
Relative Humidity ............. 0 to 90%, non-condensing
Storage Temperature ..... -40° to 185°F (-40° to 85°C)
3V,17 mAh, coin cell
Rechargeable manganese lithium
Panasonic ML1220/V1A
COMMUNICATIONS – PROTOCOL
DHCP (enabled by default) configuration, or
via Static IP mode entry.
Network configuration: IP address, Netmask
Gateway (router – DHCP option 03)
Primary and secondary DNS – DHCP option 06)
Primary and secondary NTP servers – DHCP
option 042 )
Time Zone offset (DHCP option 02) – Not enabled
by default
IPV4
SNTP /NTP version 4 – UDP, port 123 (default)
Unicast (query, default), Broadcast, Multicast modes
Telnet – TCP, port 23 (default)
Control: WinDiscovery protocol – UDP, port 6163
COMMUNICATIONS – I/O
Ethernet (10mbps) ........................... RJ45, 10baseT
Length of Ethernet cable (Cat5/5e)
............................ 328 feet maximum (100 meters)
Relay (dry contact) ...................24V AC/DC, 250mA
RTC ACCURACY
0˚ to 70˚C................................. ± 1 minute per year
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There are no user serviceable parts inside the NTDS
digital time display. Please contact Masterclock, Inc.
if you require servicing or repair.