Masterclock
www.masterclock
.com
25
Communications I/O and Power Specifications
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
DC option
DC Input Voltage
................................. International 115/230, 50-60 Hz
DC Input Connector ......................................... 2.1mm
DC power consumption ...................................... 15 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)
Physical Size
Width
Height
Depth
Weight
Material
Case
Lens
4 Digit Display
CLDNTD12
12” (30.48 cm)
12” (30.48)
2.080” (5.28cm)
4.23 lb (1.92 kg)
Powder Coated
Steel
Acrylic
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
IPV6
SNTP /NTP version 4 – UDP, port
123
(default)
Unicast (query, default), Broadcast,
Multicast modes
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
…….Size and Weight
There are no user serviceable parts inside the
CLDNTD12 digital-analog time display. Please
contact Masterclock, Inc. if you require servicing or
repair.
3V,17 mAh, coin cell
Rechargeable manganese lithium
Panasonic ML1220/V1A
