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Masterclock MDN User Manual – 2013.05.07
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Thank you for your purchase
of a MDN multifunctional display
device from Masterclock.
Here you’ll find instructions for unpacking
and installing your clock(s), including
suggestions for proper care and
configuration.
We are here to help.
You can reach us using various contact
methods (phone, email, etc.) found at our
website: www.masterclock.com
Before calling, please attempt to find the
answer to your situation here. You’ll find this
user manual will handle virtually all of your
questions.
Disclaimer
The material in this document is for
information only and subject to change
without notice. While reasonable efforts
have been made in the preparation of this
document to assure its accuracy,
Masterclock, Inc. assumes no liability
resulting from errors or omissions in this
document, or from the use of the
information contained herein. Masterclock,
Inc. reserves the right to make changes or
revisions in the product design or the
product manual without reservation and
without obligation to notify any person of
such revisions and changes
Operating Parameters
The MDN contains microprocessor control electronics
designed to operate indoors between 32˚ to 140°F (0˚ to
60˚C) with 0-90% relative humidity, non-condensing.
The MDN is not water- or moisture-proof. Treat it as you
would any other delicate electronic device and do not expose
it to water, excessive heat or physical abuse
Table of Contents
Introduction ............................................................................. 3
Features ................................................................................... 4
Power, Accessories and Software ........................................... 5
Mounting ................................................................................. 6
Configuration Checklist ............................................................ 7
Configuration ......................................................................... 10
WinDiscovery - Installation and Configuration ..................... 12
Telnet ..................................................................................... 20
Specifications ........................................................................... 21
Trouble Shooting .................................................................... 22
Care and Cleaning .................................................................. 27
Limited Warranty ................................................................... 29
Service and Return Information .............................................. 30
Health and Safety .................................................................... 31
Compliance .............................................................................. 32
Mounting Diagram ................................................................... 35
Contact Information ................................................................ 36
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The MDN features one alpha and
nine numeric 2.3” (5.8cm) LED digits
in a sturdy attractive black powdercoated steel case. Not designed for
outdoor use, this display can be
remotely configured and operated.
Introduction
THE MASTERCLOCK MDN MULTIFUNCTIONAL
DIGITAL DISPLAY syncs to an internal or external NTP
(Network Time Protocol) source for accurate, traceable
time. The MDN is also designed to accept several varieties
of Time Code and to provide countdown abilities for up to
100 days. This is our most versatile time-keeping device yet
The MDN features a three-digit Days to Liftoff display (here,
“H” stands for “Hold”).
The first character is alphanumeric. Nine digits follow.
Used strictly as a clock, the MDN accepts both Network
(NTP) and Time Code (IRIG-B12) signals.
For countdowns, the MDN accepts CS3, a NASA count
protocol based on IRIG. This mode includes three “Hold”
signal display choices.
Also for countdowns the MDN accepts CS5, a NASA count
protocol based on a ASCII stream. Within this mode one
chooses either “Count” or “Launch Time” mode.
In “Auto-detect” mode, the clock displays look for CS3 or
CS5. If they find neither, they will display Network or Time
Code signals.
The display can be “blanked” awaiting the next phase or
project.
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Features
Your new MDN multifunctional digital display provides easy-to-read
accurate time based on NTP and Time Code references. Based on a
design for NASA, the MDN features countdown abilities, including
the imposition of a hold. In addition the MDN features:
CS3 and CS5 protocol
Real-time clock back-up, it maintains accurate time during loss
of power and/or NTP reference.
Time Zone offsets (to one second resolution), it supports any
biasing requirements.
Operates on WAN or LAN at 10/100 Mbps
Fully configurable network settings, including DHCP/BOOTP
support.
Primary and secondary NTP reference with fault-tolerant
switching.
Supports NTP Broadcast, Multicast, and Query (Unicast) modes.
Supports Time Code inputs: SMPTE 24, 25, 30 fps and IRIG-B1
AM, IRIG-BO PWM
Security features include password authenticated
communication and the ability to disable Telnet management
access.
Status display to remotely view, adjust and configure devices
with WinDiscovery program
Internal rechargeable maintenance-free battery retains
configuration settings and time for at least two weeks after
power loss.
Nine-digits: Six-digit time display plus three-digit DOY (Day of
Year) or countdown with hold
Syncs to external or internal NTP source for accurate traceable
time
Display time in 12- or 24- hr formats – hh:mm:ss
Three-digit display of “Days to Liftoff” in CS-5 mode or “Day of
Year” in SMPTE, IRIG-B1, IRIG-BO or NTP modes.
Configurable for countdown
Adjustable brightness
Automatic Daylight Saving Time
Standard chassis color is black powder coat
PoE (Power-over-Ethernet) or worldwide AC Power
CE marked for sale in EU – FCC, Class B, emissions (pending)
New! Dry contact relay option - Upon loss of lock from NTP
source NO/NC dry contact relay inside the clock is energized
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CD-ROM IEC power cord
Reset button
IEC power socket for AC
Reset button
IEC power socket for AC
Above: USB B cable input
Middle: RJ45 jack for Ethernet PoE
Below: BNC connector for Time Code signal input
RJ45 Jack Adapter
Clock Connectors, Power, Accessories and Software
The following items are Included for mounting, power,
configuration and connectivity with your MDN digital
display kit
Mounting brackets (two)
CD-ROM (with WinDiscovery software application
and User Manual pdf)
Power cord – Standard IEC plug
On the back of the unit the various power plugs and
signal input connectors are placed.
RESET BUTTON
In some situations (such as a lost
password) it may be necessary
to return your device to its
factory default configuration.
Press and hold the reset button
to manually reset the MDN
(details on page 19).
STANDARD IEC AC PLUG
A standard IEC power cord and input
are provided.
USB B CABLE INPUT
A USB connection is reserved for
future use.
RJ45 JACK
Input connector admits Ethernet
network data and CS3/CS5 count
data. Requires adapter for CS-3/CS-5
over Ethernet cable.
BNC CONNECTOR
IRIG-BO and SMPTE Time Code data.
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Mounting
You can mount your MDN according to your needs. Appropriate
brackets should already be included in your kit.
DESIGNED FOR WALL, RACK OR TABLE MOUNT
Your MDN is designed to fit a variety of surfaces and
environments supported by these sturdy brackets.
WALL MOUNT BRACKET
A wall mounting bracket is supplied which has been designed to
fit on either a standard 2”x 4” or 4” x 4” conduit box. Mount the
bracket on the wall/conduit box, attach the power cord and
CAT5 Ethernet patch cable and secure the MDN to the bracket
using the supplied retaining screws. See page 35 for a plan view
with precise measurements.
SWIVEL MOUNT BRACKET (OPTION)
First, mount both swivel brackets to the wall, then attach the
signal input cable(s) and power cord and finally secure the MDN
to the swivel brackets using the supplied retaining screws. Angle
up or down to provide the best viewing. Finally, tighten all
screws.
TAKE CARE DURING INSTALLATION
Power and low voltage signal wiring should be installed
according to local electrical codes and to enable access to the
back of this device.
Do not route power or signal cables between the case and the
wall (along the exterior of the wall), which may pinch the power
or signal cable and create a hazardous condition.
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Default
Recommendation
(Examples)
MDN29-21:4B
Bldg101-Rm121
MDN49-45:8A
Conference_Room-342
Configuration Checklist
Your MDN multifunctional display device gets Network time
cues from the Ethernet and also from IRIG Time Code
sources. Therefore, before installing this device, one should
be prepared with the following basic configuration
information that the device will require during installation
and installation of the WinDiscovery configuration app
(page 12). It may be necessary to obtain some or all of this
information from a network administrator in your
organization.
STATIC NETWORKING CONFIGURATION
__ IP address and netmask designation for your MDN
__ Primary and secondary DNS (Domain Name Server)
__ Gateway/router
__ Primary and secondary NTP time references
DYNAMIC NETWORKING CONFIGURATION
__ Confirm that a DHCP/BOOTP service is accessible on the
local network
__ Determine if DHCP server will provide NTP server
configuration
__ Determine if DHCP server will provide Time Zone
configuration
NTP ADDRESSING MODE
__ Determine if this device (client) will query the NTP server
(Unicast mode), listen for NTP broadcast messages
(Broadcast mode), or listen to NTP as part of a Multicast
group.
NAMING
All NTP devices, including your MDN, can and should be
provided with a verbose name (see page 11). The name is
arbitrary and may be useful for organizing and managing
devices once installed. By default, device names are the
product name abbreviation followed by the device’s MAC
address. Customers should designate their own custom
names relating to their own organizational requirements,
32 characters max.
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LED STATE
STATUS INDICATION
Flashing Colons
No Reference: The device is not able to reference NTP
Solid Colons
Referenced Time: The device is receiving time
referenced from a NTP server
Solid Colons
CS3 and CS5 are locked during a countdown
If the Time Code input is different from
UTC, do not adjust the Time Zone and/or
DST offset. These will adjust automatically.
Daylight Savings Time (DST) adjustments
must be configured using the daylight time
option and not with the Time Zone offset
option in order to ensure proper yeararound operation.
INITIAL OPERATION / SERVER ACQUISITION
After receiving power, the MDN will go through an internal
check. Time from the RTC backup will be applied until the
IRIG-B12 signal or NTP time stamp is acquired.
STATUS LED (LIGHT EMITTING DIODE)
The LED colons between the digits on the display will follow
the protocol after power is applied (operation is
configurable via WinDiscovery or Telnet):
TIME ZONE OFFSETS
The MDN maintains time as UTC initially. A Time Zone offset
or bias can be provided to adjust the time for display
purposes (see page 18). A bias can be set as a positive (+) or
negative (-) value. Expect a resolution of one second.
DAYLIGHT SAVING TIME
An automatic Daylight Saving Time (DST) adjustment can be
configured separately (see page 16) in addition to the Time
Zone offset mentioned above. DST begins on the second
Sunday of March at 2:00 AM (Local Time) and ends the first
Sunday of November at 2:00 AM (Local Time).
EU STANDARD – EUROPEAN UNION
In the European Union, daylight change times are defined
relative to the UTC time of day. Summertime Period begins
at 1:00 AM, UTC on the last Sunday of March and ends at
1:00 AM, UTC on the last Sunday of October.
FREEWHEELING ACCURACY
The MDN has built-in provisions to allow it to freewheel and
maintain accuracy for extended periods in the absence of
Time Code. These features also allow the unit to be set
manually and run without Time Code with precision.
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SETTING
CONFIGURATION SELECTION
Disabled
Time Zone Offset
Disabled
Daylight Savings Time
Enabled
NTP Client with DHCP
Enabled
24 Hour format
TCXO AND RTC CIRCUIT
The MDN contains a RTC (Real Time Clock) circuit allowing
the clock to maintain an accuracy of ± minute per year to
the last known Time Code or NTP input (± 165 mSec per
day) when Time Code is not present or cannot be decoded
(i.e. freewheeling mode).
MAINTENANCE-FREE RECHARGEABLE BATTERY
The RTC is maintained continuously from a rechargeable
battery circuit during periods of power outage. Minimum
holdover period is two weeks with a fully-charged battery
under constant drain.
DEFAULT CONFIGURATION
The factory defaults may be restored by using the
WinDiscovery program, Telnet or by using the reset button
at the rear of the MDN.
Your MDN display ships from the factory with the following
configuration as defined below. The MDN firmware
interprets incoming time signals as UTC.
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SETTING
CONFIGURATION SELECTION
Enabled
DHCP/BootP provided network configuration
Enabled
DHCP provided NTP server address entry
Enabled
Query (Unicast) NTP client
Disabled
Time Zone offset
Disabled
Automatic Daylight Savings Time adjustment
Enabled
Telnet access
OPTION
#
COMMENTS
Time Offset
2
The value provided will be used for the Time Zone offset configuration,
unless it is defined as zero in which case it will be ignored and the network
device will rely on internal configuration. Note: this option does not provide
information appropriate for dynamic daylight savings time use.
Router
3
The first IP address provided will be used for router/gateway configuration.
Domain Name Server
6
Up to two server IP addresses may be specified. MDN will treat addresses as
primary and secondary DNS servers.
Network Time Protocol
Server
42
Up to two server IP addresses may be specified. MDN will treat addresses as
primary and secondary NTP servers.
Configuration
The Masterclock MDN display maintains its configuration
data in non-volatile flash memory, even when the power is
off. These data are configured on screen using either
WinDiscovery (page 12) software or Telnet (page 20).
The factory default configuration:
DHCP/BOOTP AUTO-CONFIGURATION
DHCP (Dynamic Host Configuration Protocol) is a
mechanism for automating the configuration of network
devices that uses TCP/IP. When DHCP is enabled, DHCP
configuration acquisition will overwrite any manual
configuration items.
Factory default: DHCP enabled.
BOOTP was a precursor to DHCP. The MDN can obtain
configuration from a BOOTP server when no DHCP server is
present.
The following RFC2132 DHCP options defined configuration
items are, when available, used by the MDN for
configuration purposes:
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The factory default displaying local time
is disabled. You must enable and
configure that setting to display local
time.
We suggest you use an NTP time server
with a UTC reference to configure the
offset for your Time Zone and DST.
To ensure proper year-around operation,
the automatic DST adjustments must be
configured using the “Daylight Savings
Time” option and not with the “Time
Zone” option.
European customers, please refer to the
“WinDiscovery, DST Settings” section
(page 18) for additional details on setting
“Summer” time (page 8).
A network device will not function
properly if configured to use DHCP
services when no DHCP server is available
on the network.
DEVICE NAME/DHCP NAME REGISTRATION
As mentioned earlier, your MDN should be provided with a
custom name (e.g. “reception-north-wall”). By default,
device names are the product name abbreviation followed
by the last octet of the device’s MAC (Media Access Control)
address (e.g. MDN-04:F7).
If a DHCP server is networked when the MDN is installed,
the unit will be auto-registered with the DHCP server. The
network system administrator can then view this DHCP
name registration and the currently assigned IP address at
the DHCP server.
DEFAULT PASSWORD
The factory-default password for the network device is:
public. Please use lower case.
RESET FACTORY DEFAULT CONFIGURATION
In some situations (such as a lost password) it may be
necessary to return your device to its factory default
configuration. A [RESET] button is located on the clock’s
rear cover.
To reset the configuration to factory default: Press and
hold the reset button for 10 seconds (until dashes appear
on the digits) and then release. The configuration will now
be reset, including the password. The unit will need to be
reconfigured to your custom settings.
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WinDiscovery
The WinDiscovery software application is a device setup
and configuration program that operates in the Microsoft
Windows operating system and is supplied FREE with your
MDN device.
INSTALLING WINDISCOVERY
To install the WinDiscovery app complete the following
steps:
Insert the CD that shipped with your network device.
1. Run the “setup.exe” application from the CD.
2. By default, the setup utility will suggest installing files to
C:\Program Files\Masterclock\WinDiscovery. Click OKAY.
USING WINDISCOVERY
Open WinDiscovery from the “Start Menu” or by double-
clicking the shortcut icon on the desktop.
Once you click [Discover], all devices accessible on the
network will announce their presence and the status bar
will display the count of devices found. When complete, a
list of device families and groups will be displayed in the
left pane of the WinDiscovery window.
Each device is configured with a device name from the
factory. This name includes the model name and a MAC
address extension. You should change the device name to
one that identifies the location of the device.
It is highly recommended that only one user opens
WinDiscovery at a time. Other methods should not be used
to manage the network devices while using this software
application.
Click on the plus [+] sign to the left of any family or group to
open and view device types that were found.
Click on the minus [-] sign to collapse the group.
Click on any device group and it will list the devices in the
right pane with all devices of that type found. To configure
another device group, click on the device name in the left
window and the device names will then appear in the right
window, ready to be managed.
To configure and manage a MDN, right click the device
name and a drop-down menu appears.
To open a MDN “Device Settings” window directly, single
click the device name.
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WITHIN THE DROP DOWN MENU WINDOW:
Six choices are presented. 1. Properties; 2. Network
Configuration; 3. Device Settings; 4. Set Password; 5. Set
Time/Date; 6. Status; 7. Reset Device; and 8. Forget
memorized password.
PROPERTIES
The [Properties] button produces a window that lists the
configuration figures currently used (at left)
NETWORK CONFIGURATION
If you do not want to automatically obtain network
configuration from DHCP/BOOTP, you may make your
changes here (at lower left).
DEVICE SETTINGS
This window is detailed on page 14.
SET PASSWORD
The “Set Password” window enables the entry of a new
password for each individual device.
A password is one to eleven characters and is case-sensitive.
For added password strength, you should use a combination
of alphanumeric and special ASCII characters (i.e. ASCII
character codes 128 – 255).
The password must be entered twice to confirm the entry.
Click [Change Password] to save or [Cancel] to discard the
change.
When a password is set for a device, each time you click
[Save] or [Save and Close] for that device you will be asked
for the password. You can select the “Remember this
password for the session” box and you will not be
prompted for the password, until you restart WinDiscovery.
Or you can use the Global Password feature (page 14).
If you enter the wrong password and selected the
[Remember this password for the session] checkbox, you
will receive an error upon clicking [Save] or [Save and Close]
to any configuration changes. You can close the
WinDiscovery session to forget the wrong password(s),
however, this will require entering the passwords again for
each device.
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Alternately, you can remove the incorrect password entry
during a WinDiscovery session by going to the drop-down
menu for the device and selecting [Forget memorized
password].
SET TIME/DATE
This feature may be most useful for demonstration, in lab
situations, environments where an external reference time
signal is not available, when the built-in NTP client is
disabled or when a network connection to an NTP server is
not available.
STATUS
This window is detailed on page 15.
DEVICE SETTINGS
Your MDN display device settings window handles most of
the visible aspects of the device. In short order, the Input
control sets the parameters for the time reference
employed. The “Local Time Settings” configured the display
in the format you prefer, using the [Daylight Savings Time]
and the [Time Zone Offsets] buttons to completely
customize the time output relative to UTC time.
The [Status] button takes you to the
“Status” window (page 16), which
includes a Display Snapshot of the digital
time display, constantly updated. This
update is not ultra-precise, but is meant
to give you a remote view of the display
from your computer console for troubleshooting and maintenance purposes.
Here you can choose settings such as the
LED brightness level, format of time, etc.
TIME REFERENCE
INPUT CONTROL
Click the [Input Control] button to reveal the “Input Control”
window. Click the [NTP Client] button to reveal the “NTP Client”
window (page 15).
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Listen/Query Restrictions
While listening to NTP broadcasts/
multicasts, the network clock cannot be
configured to query the time server.
Some NTP/SNTP clients will expect NTP
servers to operate on port 123 and
cannot be configured to use alternate
ports.
The static IP address you enter must not
be in use by another device on the
network, this includes IP address ranges
reserved for use by the DHCP server. If a
static IP address is used which creates a
duplicate IP address condition, the
network clock will be assigned a fallback
IP address of “169.254.xxx.xxx”.
The “169.254.xxx.xxx” address is a link
local address range (i.e. not allowed on
the internet) and is used by Microsoft
when their DHCP clients cannot find a
DHCP server.
QUERY NTP SERVER FOR TIME
The NTP settings are located in the upper left-hand
section of NTP Clock Configuration window (see
oval at left). Note the two settings: Primary and
Secondary.
Primary: The Primary reference information must
be configured in order to acquire time from an NTP
reference.
Enter either the IP address or Internet address/URL
(Uniform Reference Locator) for the NTP reference.
Secondary: If available, enter a secondary
reference for backup.
The primary and secondary server information can
be automatically configured by the DHCP server IF
your DHCP server is configured to do so.
If so, select “Use NTP server(s) address provided
by DHCP server.” (Consult your network
administrator to use this option).
By default, the NTP clock will operate only in
Unicast/Query mode using Server Port 123.
This mode is selected exclusively when neither the
listen for NTP broadcast nor the listen for NTP
multicast modes are selected.
LISTEN FOR NTP VIA MULTICAST
The network clock can be set up to listen to NTP using
multicast addressing by selecting the “Listen for NTP via
multicast address(s)” checkbox.
When enabled, the “Multicast class D / Group address”
may be specified as well as the frequency that multicast
broadcasts will be issued. This can be changed as desired.
The network clock can listen for NTP multicast broadcasts
using the full class D/ group address range. The network
clock does not restrict the use of the multicast address
assignment and supports the full range of class D multicast
addresses or groups from “224.0.0.0” to “239.255.255.255”.
These groups (or class D address ranges for multicasting) are
defined and governed by RFC3171, IANA IPv4 Multicast
Guidelines.
Typically, the multicast address range “224.0.1.0 to
224.0.1.255” (Internetwork Control Block) is used for NTP
traffic. However, please refer to the RFC3171 for your
specific application and implementation.
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LISTEN FOR NTP VIA BROADCAST
The network clock can be configured to listen to NTP
broadcasts by selecting the “Listen for NTP via broadcast
address “255.255.255.255” checkbox.
The broadcast timeout is adjustable when this mode is
selected.
The default configuration is to query the NTP server at 10minute intervals. The clock drift is +/- 1 minute per year, so
you can adjust as needed. To configure the network clock
device to only listen to NTP broadcasts, click the checkbox
for “Listen for NTP broadcasts only” and enter a “Broadcast
Timeout” in minutes. The default timeout is 60 minutes.
DHCP
The default factory setting for network
configuration is to use DHCP/BOOTP.
The Fallback Address
If a DHCP server cannot be found on the network
by the NTP clock, the IP address will be assigned a
fallback IP address of “169.254.xxx.xxx”
STATUS
The “Status” window is a more compact version of
the “Device Settings” window. Open this by
clicking on the [Status] button. The time
adjustments are listed here. They represent
changes to the internal time reference as
compared to the NTP server. For instance:
1. During acquisition of NTP server
Initial startup
After loss of power
After loss of NTP
2. During changes to the clocks configurations
under:
Network configuration
Device settings (i.e. NTP clock configuration)
Reset device
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Port 123
Some NTP/SNTP servers will expect NTP clients to
operate on port 123.
If the advanced settings have been altered for
your clock and you begin experiencing difficulty
in getting your clock to synchronize to the NTP
time server, or the clock begins acting erratically,
try returning the advanced settings to the default
values: “123.”
STATIC IP
To use a static IP address, de-select the checkbox for
[Automatically obtain network configuration from
DHCP/BOOTP]. You must enter the IP address, netmask,
gateway, primary DNS and also a secondary DNS.
Devices which have been assigned a fallback IP address of
“169.254.xxx.xxx” will be displayed in the main
WinDiscovery window with RED text, indicating a problem
with the configuration.
NTP CLIENT AUTHENTICATION SETTINGS
The MDN uses the MD5 Message Digest Algorithm, which is
a widely used cryptographic hash function that produces a
128-bit hash value.
IPV6 ADDRESSING (PENDING)
IPV4 ADDRESSING
The MDN uses IPV4 communications protocol using 128-bit
addresses to communicate with other Internet devices.
NTP CLIENT ADVANCED SETTINGS
From the NTP Client window, the [NTP Client Advanced
Settings] button allows for the adjustment of additional
network communication settings. Under most operating
circumstances it is not necessary to change these settings.
The factory-default TCP/UDP port for NTP service is: “123”
DISPLAY PROPERTIES
Control the brightness of the display
digits with a slider.
Choose from several other Display
Options including:
1. Type of input (Count, IRIG-B12, Auto
detect or Blank)
2. Clock mode (12- or 24-hour)
3. Count Input (takes one out of clock
mode and into count mode)
4. Whether leading zeroes are on or off
(during 24-hour time)
5. “Hold” symbol preference
6. UTC or local time display
7. Auto-detect CS3 or CS5 default.
8. IRIG-B12/NTP reference failure
display settings
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DAYLIGHT SAVINGS TIME SETTINGS
Click [Daylight Saving Time] to open that window. The clock
has complete flexibility to display any Time Zone and DST
combination.
For setting the DST rules, use one of the following options.
1. Manually enter the daylight saving time rules; or
2. Click [US/Canada Standard]; or
3. Click [EU Standard] (European Union) button.
4. Then Click [Current Windows Setting] to apply the
currently configured for your Windows OS.
5. Click [OK] to close the Window.
The DST rules will be saved when you click [Apply] or
[Apply and Close].
TIME ZONE SETTINGS
Click [Time Zone] to open the “Time Zone Configuration”
window. This window displays a list of Time Zones, including
descriptions to help with the selection. Select your offset
and click [OK] to close this window.
COMMUNICATIONS CONTROL
TELNET CONTROL
The [Telnet Control] button adjusts Telnet configuration. If
Telnet is allowed, the port must be the default Telnet port
of 23. See your network administrator if you need additional
information.
ADMINISTRATIVE FUNCTIONS
From the “Device Settings” window, click the
[Administrative Functions] button to view the following
choices.
SET TIME/DATE
This feature may be most useful for demonstration, in lab
situations, environments where an external reference time
signal is not available, when the built-in NTP client is
disabled or when a network connection to an NTP server is
not available.
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SET PASSWORD
This feature is duplicated from earlier (page xx).
RESET DEVICE
The MDN may be need a “soft reset” to allow the device to
clear its current communications buffer and re-initialize its
processing, which includes re-requesting of a DHCP address.
This feature is intended to allow the user to remotely reset
the unit and does not restore the factory default state.
SET TO DEFAULT CONFIGURATION
Choose this button to reset the MDN back to its factory
defaults (listed on page 10).
“SOFT” RESTARTS
A soft restart may periodically be performed by the MDN to
automatically attempt to rectify a problem it may be
experiencing. The MDN will perform a soft restart under
the following conditions:
1. If the MDN is not receiving an NTP poll response or an
NTP broadcast response depending on which mode the
NTDS is in.
2. If the MDN is set to use DHCP and no DHCP server can
be found.
The timeout before doing a soft restart is not less than ten
minutes. Several factors can increase this time.
1. The soft restart will be delayed by two hours if a
connection is made by Telnet or WinDiscovery.
2. The soft restart could be delayed if the user changes
the default parameters for NTP poll retries/timeouts or
the NTP broadcast times out. For example, if the NTP
broadcast timeout is increased to 60 minutes the soft
restart timeout will also be increased to 60 minutes.
Masterclock MDN User Manual – 2013.05.07
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Configuration via Telnet may not be
convenient for devices operating
with a factory default configuration
since the IP address is not known.
Use the WinDiscovery application to
establish first-time networking
configuration.
For security purposes, the Telnet
interface can be disabled. When
disabled, you will no longer be able
to access the device with Telnet.
To re-enable the Telnet feature, one
of the other configuration methods
must be used, or the device must be
reset to factory default.
If you are not familiar with Telnet,
ask your network administrator for
assistance.
Current configuration or default
answers are displayed in brackets.
Depressing the [Enter] or [Return]
key with no number or letter will
retain the current setting.
Telnet
AN ALTERNATIVE WAY TO INTERFACE
A terminal-style configuration is available via Telnet. Use any
standard Telnet client application and specify the IP address of
the device as the server with which to connect. The factory
default port is well-known Telnet server port 23.
The following sections provide basic descriptions of using the
Telnet interface of the network device. Please refer to the
previous Using WinDiscovery sections (p. 14) for additional
details and important operational information regarding the
special features and modes of the network device.
TO INITIATE A TELNET SESSION
Select the [Run] command-line interface from the Start menu
and enter the command “telnet” followed by a space, and then
the IP address of the unit and click [OK].
At the password prompt, type the password and press the
[Enter] or[Return] key.
The factory default for password is: “public.”
To initiate commands, type the command name desired and
press the [Enter] or [Return] key to see a listing of available
commands, type “help” at the prompt.
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Size:
22.25w x 3.6h x 2.25d in
Weight:
4.6 lbs
56.5w x 9.14h x 5.7d cm
2.1 kg
RJ45 Jack Adapter
Specifications
Setup and control software
Supports DHCP/BOOTP for automatic acquisition of network address, nameservers,
and time server configuration
Provides dynamic configuration for networking parameters, Time Zone/Daylight Savings Time
Configure clocks with WinDiscovery app or TELNET
WinDiscovery app discovers devices attached to the Network without changing the PC’s configuration
Configuration is saved to non-volatile memory
Password protection prevents unauthorized tampering of clock configuration
Connectors
RJ45 for Ethernet and CS3/CS5 communication. Adapter required for CS-3/CS-5 over the Ethernet cable.
BNC connector for Time Code (IRIG-B12)
USB connector (reserved for future use)
Standard IEC for AC power
Power
Power consumption: 15W
PoE (to IEEE 802.3af standard) or
International 115/230, 50/60 Hz AC, supplied with your choice of US, Euro, British or AUS/NZ power cord –
others available
Operating Parameters
Temperature: 0 to +60°C
(0 to +40°C, ±1 min/year for standard TCXO)
Humidity: Up to 90%, non-condensing
Physical
Black powder-coated, non-rusting, welded steel chassis
Masterclock MDN User Manual – 2013.05.07
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Troubleshooting
WinDiscovery uses bi-directional UDP messaging on port
6163 for both the discovery process and to communicate
configuration and status packets to and from the NTP
network device(s). Delivery of UDP messages/packets is not
guaranteed. If you experience intermittent problems with
WinDiscovery, try closing the current session and restart
the application. If this does not resolve the issue try the
following trouble shooting tips, or switch to an alternate
method of configuration such as Telnet.
LOST PASSWORD
Possible reasons and solutions:
A password cannot be recovered if it is lost or forgotten.
Reset the MDN to the factory default configuration using
the procedure described in the section, “Configuration”
(page 10). Then the unit can be reconfigured and provided
with a new password. The default password will once again
be “public.”
UNABLE TO FIND/DISCOVER THE MDN DEVICE
ON THE NETWORK USING WINDISCOVERY
Possible reasons and solutions:
1. The discovery process was not complete before
selecting device(s). After clicking [Discover], wait until
the status indicates 100% completion.
2. Verify that all network cables, hubs, etc. are in proper
working order. Be sure that Ethernet cross-over cables
are not being used where inappropriate.
3. Verify that the network device is on the same physical
network as the computer from which you are running
WinDiscovery. If the computer is separated from the
device by a router or a firewall it is likely that the
router/firewall is blocking communication with the
device. Run WinDiscovery from a computer within the
remote network, or ask a network system administrator
to configure the router/firewall in question to pass
through (both directions) UDP broadcasts on port 6163.
If this does not resolve the detection problems you may
additionally configure to pass through both directions
UDP broadcasts on ports 6165, 6166, and 6264.
4. Verify that the hub/router/switch is capable of
supporting the 10mb speed that the attached network
device requires.
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5. Verify that a DHCP/BOOTP server is present on the
network. If the device has been configured to use DHCP
for network configuration but no DHCP/BOOTP server is
present, the device may not respond to discovery
requests for up to twenty seconds after power-on.
DHCP configuration is enabled as a factory-default. In
addition, the device will reset its fallback address to one
within the link-local address space “169.254.xxx.xxx”
when no DHCP server is present or is not able to be
reached. Reset the device to initiate a new DHCP IP
address request, or use static IP address mode. Consult
your network system administrator to ensure that a
DHCP server is present and accessible on your network
and/or to obtain a list/range of available IP addresses.
CLOCK DOES NOT RESPOND TO CONFIGURATION
CHANGES AND/OR STATUS DISPLAY IS
INTERMITTENT
Device was found using WinDiscovery, but the status
display is intermittent or not updating and/or the clock
does not appear to be responding to configuration
changes under the current WinDiscovery session.
Clock(s) previously found during a recent session of
WinDiscovery do not show up during the current
session.
The clock status or settings displayed under
WinDiscovery show garbled characters.
Possible reasons and solutions:
1. The WinDiscovery application has been open for too
long and the clock configuration(s) have changed. For
example, this can occur if the DHCP server has issued a
new/refreshed address. Close the WinDiscovery
application and restart.
2. The discovery process was not complete before
selecting began. After clicking [Discover], wait until the
discovery status indicates 100% completion.
3. Verify that the physical network cables and equipment
are configured for UDP.
4. Verify that you are currently the only user accessing the
device via WinDiscovery or Telnet.
5. The network may currently be experiencing heavy
traffic which is reducing bandwidth and/or causing
collisions with the UDP packets between the device(s)
and WinDiscovery. Since delivery of UDP messages are
not guaranteed, this can cause WinDiscovery to not
receive the latest configuration or status packets and
thus show outdated or garbled information.
6. In some cases, the device may not be discovered and
displayed in the WinDiscovery device tree. In others,
previously discovered devices may no longer be
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If the configuration of the network
device is changed while a
“169.254.xxx.xxx” is being used (for
example: changing the Time Zone
offset), then the current
“169.254.xxx.xxx” address will become
the permanent static address and the
original conflicting static address is lost.
At this point, it is necessary to manually
change the static IP address to one that
does not conflict, or you may do a “Reset
Configuration” to restore the system to
factory default settings.
accessible or responding. Click [Discover] again and
wait until the discovery process to complete. Close the
current WinDiscovery session and restart the
WinDiscovery application. Take steps to increase the
bandwidth and reduce network traffic.
If these continue to be ongoing problems, consider the
Telnet configuration method or remove the device to
an isolated LAN.
MDN PERIODICALLY RESETS ITSELF
MDN name appears in red text under WinDiscovery
device tree
MDN is being assigned an IP address of 169.254.xxx.xxx
MDN is showing an “Error” field under the status
window in WinDiscovery
Possible reasons and solutions:
1. Incorrect network configuration may be causing the
device to receive a fallback IP address and or perform
soft restarts. Verify that the IP address configured for
the device is correct. If you manually enter (or DHCP
assigns) an IP address that already exists on the
network, this will create an IP address conflict. The
device will reset its address (fallback) to one within the
link-local address space. Determine the cause of
fallback IP address and resolve issue. View the error
status field under the status window to help determine
the cause of why the device received a
“169.254.xxx.xxx”. Near the bottom of the status
window the error will be displayed. (If there is no error
the text box will not be displayed.)
2. If static IP addressing is being used the original
conflicting static IP address can be restored. Perform a
soft restart of the network device using either
WinDiscovery or Telnet prior to changing any other
configuration parameters.
3. If DHCP was selected and the network device falls back
to a “169.254.xxx.xxx” address approximately every 10
minutes (depending upon the “Advanced Settings”
values) the Ethernet interface will be reinitialized and
the network device will attempt to get an IP address
from the DHCP server. If the network device is
successful, the error will be cleared and the new
address from the DHCP server will be used. If a
discovery was done using WinDiscovery or Telnet was
used this initialization will be delayed by two hours.
STATUS LED IS FLASHING
Status in WinDiscovery says ‘”Unsynchronized”
MDN is unable to find NTP reference, either primary or
secondary
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25
Possible reasons and solutions:
1. Verify that the NTP server(s) specified are reachable,
communicating, and are not flagging their reported
time as invalid. Use a PC-based SNTP client application
to verify the server(s) if necessary.
2. Verify that a gateway/router/firewall has been
configured that allows the device to communicate
outside of its local network.
3. Verify that the IP address configured for the device is
correct. If you manually enter or DHCP assigns an IP
address that already exists on the network, this will
create an IP address conflict. The device will reset its
address to one within the link-local address space
“169.254.xxx.xxx”. If you see that the IP address starts
with “169.254”, obtain a new IP address for the device
or resolve the duplication. Consult your network
administrator for a range of available IP addresses to
avoid IP address conflicts.
4. If using DHCP mode, consult your network
administrator to ensure that your DHCP server is
configured to automatically supply the NTP server
address before selecting the “Use NTP server(s) address
provided by DHCP server” checkbox. If the DHCP server
cannot automatically supply the NTP server address(s),
then deselect this option and enter the NTP server(s)
address(s) manually.
5. Verify that the device is connected to the Ethernet
LAN.
6. Verify that all network cables, hubs, etc. are in proper
working order. Be sure that Ethernet crossover “patch
cables” are not being used where inappropriate.
CLOCK IS NOT DISPLAYING
THE CORRECT LOCAL TIME OR DATE
Clock did not properly negotiate the DST to standard time
(or vice-versa) transition
Possible reasons and solutions:
1. Time Zone offset has been configured incorrectly.
Provide the correct Time Zone configuration.
2. DST has been configured incorrectly. This is configured
separately from the Time Zone configuration. Provide
the correct DST configuration by either manually
entering the DST rules or selecting the single button
configuration under WinDiscovery. If using the
convenient single-button configuration for [US/Canada]
or [EU DST], be certain to use the latest version of
WinDiscovery and apply it for each device. If using the
[Current Windows Setting] button to apply the DST
rules, verify that the rules on the computer are correct.
Masterclock MDN User Manual – 2013.05.07
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26
3. If using DHCP/BOOTP for network configuration, consult
with your network administrator to see if the optional
Time Zone option has been changed as this option as
provided by DHCP can override manual settings.
4. If you have used the Set Time/Date function, note that
the device assumes that you have entered UTC and will
apply your Time Zone and DST configuration relative to
the manually entered time.
5. The NTP time server(s) is not available or the NTP server
being used has the incorrect UTC time. Verify the NTP
time server(s) are available and is providing the correct
UTC time.
“BAD PASSWORD” WINDOWS POP-UP EACH
TIME A CONFIGURATION SETTING IS APPLIED
Possible reasons and solutions:
1. You have entered and “remembered” an incorrect
password in the password windows. This is now causing
multiple error indication windows titled “Bad
Password” to pop-up for each portion of the
configuration message that is being sent to the device.
You must clear the memorized password using one of
the two options below.
a. WinDiscovery only remembers the password for the
current session, close the WinDiscovery session and
reopen. All passwords will be forgotten by
WinDiscovery.
b. As an alternative to closing the WinDiscovery session,
from the drop-down menu on the device being
administered, click on “Forget memorized password”.
2. If using the Global Password feature, the global
password does not match the existing password of the
device you are trying to manage. Either change the
device password to match that of the global password,
or change the global password to match that of the
device(s) you are attempting to manage.
IF THESE INSTRUCTIONS ARE CONFUSING OR
NOT WORKING FOR YOU
Send us an e-mail or call right away. See last page (p. 36).
Masterclock MDN User Manual – 2013.05.07
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Care and Cleaning
Adherence to regular and proper cleaning procedures is
recommended to preserve appearance. Scratched or
otherwise damaged lenses caused by misuse, mishandling,
improper storage, or improper cleaning is not covered
under the limited warranty.
MINIMIZE HAIRLINE SCRATCHES
Always store the device face-up in the protective plastic
shipping bag until ready for installation and during
transportion to the installation site. Do not place the device
face (lens surface) down on any surface as this may scratch
or mar the lens.
Scratches and minor abrasions can be minimized by using a
mild automobile polish. Three such products that tend to
polish and fill scratches are:
1. Johnson Paste Wax,
Johnson and Johnson Co.
2. Novus Plastic Polish #1 and #2,
Novus, Inc., Minneapolis, MN
3. Mirror Glaze plastic polish (MG M10)
Mirror Bright Polish Co., Pasadena, CA.
We suggest a test be made on a very small section of the
polycarbonate lens with the polish selected and that the
manufacturer's instructions be followed.
"DON'T" - VERY IMPORTANT
Don't store the device without the protective plastic
shipment bag.
Don't store or place the device face down on any
surface, as this may scratch the lens.
Don't use abrasive or highly alkaline cleaners.
Don't use paper towels, paper products, rayon, or
polyester cloths to clean or dry the lens.
Don't scrape the lens with squeegees, razor blades or
other sharp instruments.
Don't ever use benzene, gasoline, acetone, methyl
ethyl ketone (MEK), muriatic acid, or carbon
tetrachloride on the lens.
Don't clean lenses in hot sun or on very hot days.
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CLEANING THE LENS
The following cleaning agents have been found to be
compatible with the Polycarbonate and Acrylic lens.
Manufacturer's instructions should be followed.
Formula 409™ (Clorox Co.
Top Job™ (Proctor and Gamble)
VM and P grade Naphtha Joy™ (Proctor and Gamble)
Windex w/Ammonia D™ (Drackett Products)
Palmolive Liquid™ (Colgate Palmolive).
FOREIGN SUBSTANCE REMOVAL
The use of the the following products should help remove
foreign substances from your Masterclock clock or device:
Butyl Cellosolve (For removal of paints, marking pens,
lipstick, etc.)
The use of adhesive tape or lint removal tools work well for
lifting off old weathered paints.
Kerosene, naphtha, or petroleum spirits is generally
effective to remove labels, stickers, etc. When the solvent
will not penetrate sticker material, apply heat (hair dryer) to
soften the adhesive and promote removal.
Gasoline should never be used.
JOB SITE PRECAUTIONS
We recommend that devices be removed from the wall and
stored face up in their protective shipment bags during
painting and construction.
New construction and renovations frequently require that
the job site be cleaned of any excess mortar, paint, sealant,
primers or other construction compounds. Only
recommended cleaners should be used to clean the
polycarbonate lens. Contact with harsh solvents such as
methyl ethyl ketone (MEK) or muriatic acid can result in
surface degradation and possible crazing of the
polycarbonate.
When the device is first installed, glazing compound and
masking tape adhesive can be easily removed from the lens
by applying VM & P Naphtha or kerosene with a soft cloth,
followed immediately with a thorough soap and water
cleaning.
Masterclock MDN User Manual – 2013.05.07
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Limited Warranty
This Masterclock product warranty extends to the original purchaser.
Masterclock warrants this MDN against defects in materials and
workmanship for a period of one year from the date of sale. If
Masterclock receives notice of such defects during the warranty period,
Masterclock will, at its option, either repair or replace products that
prove to be defective.
Should Masterclock be unable to repair or replace the product within a
reasonable amount of time, the customer's alternate remedy shall be a
refund of the purchase price upon return of the product to Masterclock.
This warranty gives the customer specific legal rights. Other rights, which
vary from state to state or province to province, may be available.
EXCLUSIONS
The above warranty shall not apply to defects resulting from improper or
inadequate maintenance by the customer, customer-supplied software
or interfacing, unauthorized modification or misuse, operation outside of
the environmental specifications for the product or improper site
preparation and maintenance (if applicable).
WARRANTY LIMITATIONS
MASTERCLOCK MAKES NO OTHER WARRANTY, EITHER EXPRESSED OR
IMPLIED, WITH RESPECT TO THIS PRODUCT. MASTERCLOCK SPECIFICALLY
DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE.
In any state or province which does not allow the foregoing disclaimer,
any implied warranty of merchantability or fitness for a particular
purpose imposed by law in those states or provinces is limited to the oneyear duration of the written warranty.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER'S SOLE AND
EXCLUSIVE REMEDIES. IN NO EVENT SHALL MASTERCLOCK BE LIABLE FOR
ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER
LEGAL THEORY.
In any state or province that does not allow the foregoing exclusion or
limitation of incidental or consequential damages, the customer may
have other remedies.
HARDWARE SERVICE
You may return your MDN to Masterclock for repair service. Please
contact the factory for RETURN AUTHORIZATION before returning the
unit. When you return your device for service, you must prepay all
shipping charges, duty and taxes. For international returns, please
contact the factory.
Masterclock MDN User Manual – 2013.05.07
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Service and Return Information
We sincerely hope that you never experience a problem
with any Masterclock product. If you do need service,
contact Masterclock’s Technical Support team. A trained
specialist will help you to quickly determine the source of
the problem. Many problems are easily resolved with a
single phone call or email. If it is necessary to return a unit
to us, an RMA (Return Material Authorization) number will
be given to you.
Visit our website to download a current RMA request form.
http://www.masterclock.com/rma.php
Masterclock tracks the flow of returned material with our
RMA system to ensure speedy service. You must include this
RMA number on the outside of the box so that your return
can be processed immediately.
RMA Policy
Our RMA policy is straightforward and is based on several
basic premises:
An item can be returned, subject to several basic
requirements, under our 30-day Satisfaction Guarantee.
If an item fails within the Warranty Period we will repair
and return it freight prepaid.
If an item gives trouble beyond the warranty period and
requires repair we will inspect, repair and return the
item to you for a reasonable charge for the work and
the cost for freight.
If you think an item or system is not working properly
we expect you to read the instruction manual, talk with
our technical support department and make a
reasonable effort to resolve the issue.
If you return an item to us for repair and the item is
found to work properly then we will charge you an
"Analysis and Inspection" charge plus the return freight.
Please supply us with as many details about the problem as
you can. The information you provide will be supplied to the
repair department before your unit arrives. This helps us to
provide you with the best service, in the fastest manner.
We apologize for any inconvenience that the need for repair
may cause you. We hope that our rapid service meets your
needs. If you have any suggestions to help us improve our
service, please give us a call. We appreciate your ideas and
will respond to them.
Masterclock MDN User Manual – 2013.05.07
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31
Never insert any metallic object into
the devices case. Doing so increases
the risk of electrical shock, short
circuiting, fire or personal injury.
Never expose this device to rain, or use
it near water or in damp or wet
conditions.
Never place objects containing liquids
on or near this device, as they may spill
into its openings increasing the risk of
electrical shock, short circuiting, fire or
personal injury
Health and Safety
These devices generate, use and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. There is no
guarantee that interference will not occur in a particular
installation. If this device does cause harmful interference
to radio or television reception, which can be determined by
removing power from the device, the user is encouraged to
try to correct the interference by one or more of the
following measures:
1. Connect the devices AC power cord into an outlet on a
different circuit than other devices.
2. Increase the physical distance between the NTDS digital
time display and other devices.
3. Contact technical support.
This NTDS series has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation.
Only qualified persons are authorized to carry out
maintenance on this device. Read this User’s Manual
carefully, and follow the correct procedure when setting up
the device. Do not open your Masterclock product or
attempt to disassemble or modify it.
Masterclock MDN User Manual – 2013.05.07
Page 32
Declaration of Conformity
Multifunctional Digital Display
MDNxx (AC power)
where alphanumeric xx indicates digit size, count and configuration,
is compliant with the CE directives and standards listed below.
DoC#: MDN-AC-201304
Masterclock, Inc.
2484 West Clay St.
Saint Charles, MO 63301
Directives:
Electromagnetic Compatibility (2004/108/EC)
Low Voltage Directive (2006/95/EC)
Standards:
CENELEC EN 55022:2010 Class B
CENELEC EN 55024:2010 Immunity
IEC 61000-4-2:2008
IEC 61000-4-3:2006 +A1:2007, +A2:2010
IEC 61000-4-4:2004 +A1:2010
IEC 61000-4-5:2005
IEC 61000-4-6:2008
IEC 61000-4-11:2004
CENELEC EN 60950-1:2006 +A11:2009
By:
William J. Clark,
President
Masterclock, Inc. USA April 30, 2013
Masterclock, Inc. Tel (US & CAN): 800-940-2248 - 636-724-3666 • Fax: 636-724-3776
2484 W Clay St, St Charles, MO 63301 Email: sales@masterclock.com • Web: www.masterclock.com
Page 33
32
FCC STATEMENT
This device complies with Part 15 of the FCC Rules and
found to comply with the limits for a Class B digital device.
These limits are designed to provide reasonable protection
against harmful interference in a commercial/residential
installation.
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation
WASTE ELECTRICAL AND ELECTRONIC
EQUIPMENT DIRECTIVE (WEEE) 2002/95/EC
The NTDS models are considered WEEE Category 9
(Monitoring and Control Instruments Equipment) as defined
by the WEEE Directive and therefore fall within the scope of
the WEEE Directive.
For more information about Masterclock’s WEEE
compliance and recycle program, please visit:
http://www.masterclock.com/rohs_compliance.php
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
RoHS
RESTRICTION OF THE USE OF CERTAIN
HAZARDOUS SUBSTANCES DIRECTIVE
2002/95/EC
The RoHS directive covers the same scope of electrical and
electronic equipment that are under the WEEE directive,
except that Category 8, Medical Devices, and Category 9,
Monitoring and Control Instruments, which are under
WEEE, are excluded from the RoHS directive.
The time display product NTDS fall under the category of
Monitoring and Control Instruments Equipment (Category 9
as defined in Annex 1A of WEEE 2002/96/EC Directive)
which is excluded from the RoHS directive 2002/95/EC
(reference Article 2, paragraph 1) requirements.
These products are manufactured using lead in the
soldering process as allowed for items excluded from the
RoHS directive. These units are RoHS Compliant only in that
they are excluded from the RoHS directive under Category
9, Monitoring and Control Instruments.
Masterclock MDN User Manual – 2013.05.07
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33
Icons Used In This Manual
Caution: This icon signifies a
potential hazard, and gives tips on
how to avoid them.
Copyright
© 2012 Masterclock, Inc. All rights reserved. No part of this
publication may be reproduced, stored in a retrieval system,
or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording or otherwise, without
the prior written consent of Masterclock, Inc.
Trademarks
Microsoft is a registered trademark of Microsoft
Corporation. Other trademarks mentioned in this manual
are the property of their respective owners.
Printing
While optimized for onscreen viewing, the pages of this
manual are formatted for printing on 8.5” x 11” and A4
sized paper, giving you the option to print the entire manual
or just a specific page or section.
Masterclock MDN User Manual – 2013.05.07
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34
Plan View of Wall Mounting Bracket (see page 6)
Designed to fit on either a standard 2”x 4” or 4” x 4” conduit box. Mount the bracket on the
wall/conduit box, attach the power cord and CAT5 Ethernet patch cable and secure the NTDS to the
bracket using the supplied retaining screws.
Masterclock MDN User Manual – 2013.05.07
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35
Contact Us
Masterclock, Inc.
2484 West Clay Street
St. Charles, MO 63301 USA
website
www.masterclock.com
USA and Canada
1-800-940-2248
1-636-724-3666
1-636-724-3776 (fax)
International
1-636-724-3666
1-636-724-3776 (fax)
Sales
sales@masterclock.com
Technical Support
support@masterclock.com
Masterclock MDN User Manual – 2013.05.07
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