Brandywine M212 User manual

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MANUAL P/N 900000178 REV B
Master Clock System (M212)
User Manual
P/N: 900000178
Re ision B
For Brandywine Communications products with the
following Part Numbers:
0366003##

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MANUAL P/N 900000178 REV B
WARNING :
This unit contains lethal AC voltages. Disconnect the unit from the AC
supply before removing the cover.
WARNING:
This unit contains dual power supplies. Isolate BOTH power supplied
from AC Power before removing the top cover.
WARNING:
The lightning flash with an arrowhead inside of an equilateral triangle is
intended to alert the user to the presence of un-insulated “dangerous voltage”
within the product s enclosure. The “dangerous voltage” may be of sufficient
magnitude to constitute a risk of electrical shock to people. Do not attempt to
repair the unit without first unplugging it.
CAUTION:
The exclamation point inside of an equilateral triangle is intended to alert the
user to the presence of important operation and maintenance instructions in
the user guide. Only qualified personnel should repair this unit. Several
board assemblies contain static sensitive devices. Appropriate procedures
must be used when handling these board assemblies.
Safety Warnings

MANUAL P/N 900000178 REV B
Revision History
Rev
Date
Comments
ECO
Number
A
12/7/2020
Initial
release
11560
B 04/8/2021 Added Section 7 –Rear Panel Pinouts (pg 46) 11683

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MANUAL P/N 900000178 REV B
Table of Contents
1Introduction ....................................................................................................... 7
1.1 Master Clock System Basic Concept ........................................................................................................... 8
1.2 Specifications (Basic Unit) .............................................................................................................................. 9
1.2.1 Signal Reference Inputs ............................................................................................................................ 9
1.2.2 Environmental .............................................................................................................................................. 9
1.2.3 Physical ............................................................................................................................................................ 9
1.2.4 Temperature .................................................................................................................................................. 9
1.2. Shock and Vibration ................................................................................................................................... 9
1.2.6 EMC .................................................................................................................................................................... 9
1.2.7 Outputs............................................................................................................9
1.2.8 OSM Specifications ................................................................................................. 11
2Setup................................................................................................................ 14
2.1 Installation............................................................................................................................................................ 14
2.1.1 Mounting ....................................................................................................................................................... 14
2.1.2 Power .............................................................................................................................................................. 14
2.1.3 Ethernet ......................................................................................................................................................... 14
3Configuration ................................................................................................... 15
.1 Status Page ........................................................................................................................................................... 15
.2 System Page ......................................................................................................................................................... 17
3.2.1 System Inventory ....................................................................................................................................... 17
3.2.2 System Settings ........................................................................................................................................... 18
. Module Status and Configuration Pages ............................................................................................... 21
.4 Master Clock Module (MCM) Configuration Page ............................................................................ 22
3.4.1 MCM Inventory Page ................................................................................................................................ 22
.5 MCM Status Page ............................................................................................................................................... 2
3. .1 MCM Faults................................................................................................................................................... 23
3. .2 HQ+PPS Phase/Freq Faults .................................................................................................................. 24
3. .3 Alarms............................................................................................................................................................. 2
3. .4 MCM Status .................................................................................................................................................. 26
.6 MCM Settings Page ........................................................................................................................................... 28
3.6.1 IP Settings ..................................................................................................................................................... 28
3.6.2 NTP | SNMP Settings ................................................................................................................................ 29
3.6.3 Reference Settings ..................................................................................................................................... 30
3.6.4 Time Settings ............................................................................................................................................... 34
3.6. Serial Settings ............................................................................................................................................. 3
.7 Universal Output Signal Module (OSM) Configuration Page ...................................................... 6
3.7.1 Universal OSM Inventory Page ............................................................................................................ 36
3.7.2 Universal OSM Status Page ................................................................................................................... 37
3.7.3 Universal OSM Settings ........................................................................................................................... 38
.8 Network Time Protocol (NTP) OSM Configuration Page.............................................................. 40
3.8.1 NTP OSM Inventory Page....................................................................................................................... 40
3.8.2 NTP OSM Status Page .............................................................................................................................. 41
3.8.3 NTP OSM Settings ...................................................................................................................................... 42
4Support Information ......................................................................................... 43
5Front Panel Drawing ......................................................................................... 44

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MANUAL P/N 900000178 REV B
6Rear Panel Drawings ......................................................................................... 45
7Rear Panel Pinout information………………………………………………………………………….46
8 Parts Lists ........................................................................................................ 47
Table of Figures
Figure 1. Master Clock System Front View .................................................................................. 7
Figure 2. M212 Status Page. ............................................................................................................ 15
Figure . System Inventory Tab .................................................................................................... 17
Figure 4. M212 System Setting Tab in View Mode ................................................................. 18
Figure 5. M212 Settings Tab in Edit Mode ................................................................................ 20
Figure 6. M212 Configuration Menu............................................................................................ 21
Figure 7. MCM Inventory Page ....................................................................................................... 22
Figure 8. MCM Faults Status Page ................................................................................................. 2
Figure 9. MCM HQ+PPS Phase/Freq Faults Status Page ...................................................... 24
Figure 10. MCM Alarms Status Page ............................................................................................ 25
Figure 11. MCM Status Page ........................................................................................................... 26
Figure 12. MCM IP Settings Subtab .............................................................................................. 28
Figure 1 . MCM NTP and SNMP Settings ................................................................................... 29
Figure 14. MCM Reference Settings Page 1 ............................................................................... 0
Figure 15. MCM Reference Settings Page 2 ............................................................................... 2
Figure 16. MCM Time Settings ....................................................................................................... 4
Figure 17. MCM Serial Settings ...................................................................................................... 5
Figure 18. Universal OSM Inventory Page ................................................................................. 6
Figure 19. Universal OSM Status Page ........................................................................................ 7
Figure 20. Universal OSM Settings ............................................................................................... 8
Figure 21. NTP OSM Inventory Page ........................................................................................... 40
Figure 22. NTP OSM Status Page ................................................................................................... 41
Figure 2 . NTP OSM Settings Page ............................................................................................... 42
Figure 24. M212 Front Panel Drawing ....................................................................................... 44
Figure 25. M212 Rear Panel Drawing ......................................................................................... 45

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MANUAL P/N 900000178 REV B
Table of Tables
Table 1. M212 Status Page Descriptors ...................................................................................... 15
Table 2. M212 System Inventory Tab Descriptors. ................................................................ 17
Table . M212 System Settings Tab Descriptors..................................................................... 18
Table 4. M212 MCM Status Page Descriptors .......................................................................... 26
Table 5. MCM Input Reference Settings Page 1 Setting Descriptors .............................. 0
Table 6. MCM Reference Settings Page 2 Setting Descriptors .......................................... 2
Table 7. Universal OSM Setting Descriptors ............................................................................ 8

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MANUAL P/N 900000178 REV B
1 Introduction
Figure 1. Master Clock System Front View
Brandywine’s M212 Master Clock System represents the next generation of modular
timing systems. Built as a commercial derivative of the highly successful ruggedi ed
Modular Master Clock, the M212 provides assured timing capabilities using
Brandywine’s Timewall™ technology.
At the center of the M212 system is Brandywine’s powerful Master Clock Module
(MCM). The MCM may be synchroni ed by a variety of reference sources and uses the
selected reference to steer an embedded oscillator to provide stable and accurate time
and frequency for the M212. Multiple references can be prioriti ed with automatic
failover. Uniquely, the MCM’s Timewall™ algorithms validate the GPS reference based
upon the inherent stability of the MCM oscillator, providing hardening against possible
GPS spoofing.
Available input reference selections include GPS (both C/A code and SAASM receivers
are supported), IRIG-B, and Have Quick/1PPS. In additional an MCM may be
synchroni ed to up to 2 other M212 chassis using a fiber optic crosslink, this provides
additional resiliency for the M212 time and frequency references.
The standard oscillator in the M212 is a high quality Temperature Compensated Crystal
oscillator, but the M212 optionally can be ordered with other reference oscillator
choices, including Rubidium, Chip Scale Atomic Clock (CSAC) and Oveni ed Oscillator
(OCXO)
The output signals for the M212 are generated by up to 6 Output Signal Modules (OSM),
and are ideal for custom solutions or future expansion. Available modules include NTP,
low-phase-noise frequency, time code modules such as IRIG A, B, G, H, and NASA 36,
BCD, PPS, PPM, Have Quick, serial data (RS232/422) as well as optical crosslink.
The M212 status and control is via front panel display for basic configuration and status,
a secure web browser, and via SNMPv3. Network protocols also fully support privacy
and authentication.

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MANUAL P/N 900000178 REV B
1.1 Master Clock System Basic Concept
The Master Clock System is a master clock that can have its capabilities
defined by the use of standardized modules, allowing custom solutions to be
created from standard hardware.
Through the use of these standardized modules, distributed timing networks
for high accuracy applications may be readily created.

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MANUAL P/N 900000178 REV B
1.2 Specifications (Basic Unit)
1.2.1 Signal Reference Inputs
1.2.1.1 C/A code GPS Recei er (standard)
Receiver Type GNSS multi constellation
(GPS, GLONASS, Galileo
1
, Beidou)
Sensitivity Tracking: -159 dBm
Acquisition: -147 dBm
1.2.6 EMC
1.2.7 Outputs
FCC Part 15, Class A
IEC CISPR 22
CE
Accuracy 15ns (1σ) (@ -130 dBm)
Connector Type BNC J8
1.2.1.2 SAASM GPS Recei er (optional)
Receiver Type GB-GRAM Type II
Keyfill cable 5 pin Audio
Keyfill port DS102
COM Port DB9–F connector
1.2.1.3 External 1PPS Input
Signal Format Per ICD-GPS-060B
Rate 1 pulse per second
Impedance 50 ohm
Connector Type BNC J6B
1.2.1.4 External GPS Ha e Quick T/C Input
Signal Format Per ICD-GPS-060A,
STANAG 4246 HQ2A
Rate 1 frame per second
Impedance 10k Ω
Connector Type DB9M J5A
1.2.1.5 External IRIG B Input
Signal Format IRIG B Per IRIG 200-04
Control Functions Per IEEE1344
Modulation ratio 2.5:1 to 3.3:1
Amplitude 1 Vp-p to 5Vp-p
Impedance >600 ohm
Connector Type DB9M J5A
1.2.2 En ironmental
AC Supply
Voltage 90-265 VAC 50/60 Hz.
100W Maximum
DC Supply
Voltage 18-36VDC or 36-72 VDC
Connector Barrier Terminal Block
1.2.3 Physical
Length (depth) 20.00”
Width 17.00” Chassis Width
19.00” Front Panel Width
Height 1.72” 1U chassis
Weight 10 lbs
1.2.4 Temperature
Air Temperature -15 to 55degC
Altitude Conditions -1500 ft to +11,000 ft
1.2.5 Shock and Vibration
Operating Shock MIL-STD 810F 20g/11ms
Bench Handling Shock MIL-STD 810F
Vibration MIL-STD-167-1
Structure-borne Noise MIL-STD-740-2
1 Requires firmware upgrade
Pulse-per-second (1PPS) Output 1
Signal Format Per ICD-GPS-060B
Rate 1 pulse per second
Rising Edge On Time
Rise Time <50ns
Fall time <100ns
Pulse Width 20 µs ±5% default.
Amplitude 10V ±10%
Output condition when TFOM<7 only
Connector Type BNC
Number of Outputs 2
Have Quick Time of Day Output
Signal Format Per ICD-GPS-060A,
STANAG 4430
Rate 1 pulse per second
Rising Edge On Time
Rise Time <100ns
Fall time <100ns
1PPS coherence < 100ns of rising edge of
1PPS
Amplitude 5V ±5%
Accuracy to 1PPS <100ns
Output condition when TFOM<7 only
Connector Type 3 Pin
BCD Time Code Output
Signal Format Per ICD-GPS-060A
Rate 50 bits/sec
1PPS coherence < 100ns of rising edge of
1PPS
Mark (logical 1) +2.5V ±1V
Space (logical 0) -2.5V ±1V
Output condition when TFOM<7 only
IRIG B Time code Output
Signal Format B122, B124,
Control Functions B124 CF definition
per IEEE1344
Rate 1kHz modulated
sinewave
Modulation ratio 10:3 ±10%
Amplitude 3V
p-p
±20% into 50Ωload
Output condition when TFOM<7 only
Alarm Output
No of outputs 1 ( wire-OR’d from 2
MCMs)
Signal Format Dry contact closure
Normally closed
Normal Operation Relay Active
Connector Type 15 Pin D-Sub Male
Reference Frequency Outputs

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MANUAL P/N 900000178 REV B
Signal Format Sinusoid
Frequency 5 MHz, and 10 MHz
Amplitude 13dBm/1V
rms
Harmonic Distortion-30dBc
Non-Harmonic -70dBc 1-500MHz
NTP Output
Signal Format Ethernet 100BaseT
Protocols supported NTPv3 (RFC-1305)
NTPv4 (RFC-5905)
No of Outputs 1 (J7-B only)
Authentication SHA-1, MD5, AutoKey
Management
Front Panel Full color touch screen
Remote SNMP V3
Management Viewer MMCView
Firmware upgrade Using GPNTSModule
Update secure tool
Power and Environmental Specifications
Power
No of Inputs 1 standard, 2 redundant optional
Voltage 90-250VAC ±10% 50/60 Hz
Connector IEC 320 standard, optional
MS3102A-10SL-3P
Physical Dimensions
Length (depth) 20.00” (Chassis Depth)
Width 17.00” (Chassis) – 19.00” (Front
Panel)
Height 1.75” (Chassis Height)
Weight 25 lbs nominal (slides not included)
Cooling Requirements
Air Temperature -15ºC to +53ºC
Altitude Conditions 1500 ft to +11,000 ft.
Airflow 30 cfm
Redundant Fans
Shock and Vibration Requirements or Sensitivities
Functional (operating) Shock
MIL-STD 810F Method 516.5
Procedure I
Bench Handling Shock
MIL-STD 810F Method 516.5
Procedure VI
Vibration, Functional (operating)
MIL-STD-167-1
EMI EN55022, EN55024, FCC Part 15
Safety CE Certified

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MANUAL P/N 900000178 REV B
1.2.8 OSM Specifications
1.2.8.1 Uni ersal Output Signal Module
The Universal OSM provides the ultimate in flexibility.
The Universal OSM has 4 outputs, each of which is
user-programmable to a wide variety of time code or
pulse outputs. This flexibility ensures that an M212 can
be reconfigured as requirements change, and fewer
modules are needed in comparison to designs where
modules are single function. Each output is individually
adjustable for propagation delay, ensuring that for high
accuracy synchronization different cable lengths can be
accommodated.
Available output formats per connector
•1 PPS and 1PPM
•HaveQuick
•IRIG A, B, E, G, H
•XR3, 2137
Specifications:
Pulse-per-second/minute
Signal Format Per ICD-GPS-060B
1PPS Rate 1 pulse per second
1PPM Rate 1 pulse per minute
Rising Edge On Time
Rise Time <20ns
Fall time <100ns
Pulse Width 20 µs ±5% default.
Amplitude 10V ±10% into 50Ω
Output condition when TFOM<7 only
Have Quick Time of Day Output
Signal Format Per ICD-GPS-060A
Rising Edge On Time
Rise Time <100ns
1PPS coherence < 100ns of rising edge
Amplitude 5V ±5%
Output condition when TFOM<7 only
BCD Time Code Output
Signal Format Per ICD-GPS-060B
Rate 50 bits/sec
1PPS coherence < 100ns of rising edge
Mark (logical 1) +2.5V ±1V
Space (logical 0) -2.5V ±1V
Output condition when TFOM<7 only
Connector Type 3 Pin (Consult factory)
IRIG Time Code Output
Signal Format B002, B122, B004, B124
(Consult factory for other formats)
Control Functions B124 per IEEE1344
Rate 1kHz modulated
Modulation ratio 10:3 ±10%
Amplitude 5V
p-p
±20%
Output condition when TFOM<7 only
2137 Time code Output
Signal Format 2137
Carrier 1kHz modulated
Modulation ratio 10:3 ±10%
Amplitude 5V
p-p
±20%
Output condition when TFOM<7 only
XR3 Time code Output
Signal Format XR3
Rising Edge On Time
Rise Time <100ns
1PPS coherence < 100ns of rising edge
Amplitude 5V ±5%
Output condition when TFOM<7 only
Propagation delay compensation
Applicability All 4 outputs individually
Range ± 0 – 1ms in 5ns steps
Low Phase Noise Analog OSM
The Analog Low Phase Noise Module provides 4 low
phase noise reference frequency outputs at 5, or
10MHz. The OSM incorporates a clean-up OCXO that
is phase-locked to the MCM oscillator which must be
OCXO, CSAC, or a Rubidium oscillator
Specifications:
Waveform Sinusoid
Amplitude 13 ±2 dBm/1V
rms
Harmonics -40dBc
Non Harmonic <-80dBc 10k - 500MHz
Connector Type Coaxial, BNC
Accuracy Locked to MCM oscillator
Phase Noise
dBc/√Hz
10MHz 5MHz
1Hz
-
90dBc
-
95dBc
10Hz
-
120dBc
-
125dBc
100Hz
-
145dBc
-
148dBc
1KHz
-
155dBc
-
155dBc
10KHz
-
158dBc
-
158dBc
1.2.8.2 5MHz Output OSM
The 5MHz output OSM provides 4 reference frequency
outputs at 5 MHz. The OSM buffers and distributes a
5MHz signal that is generated directly on the MCM.
The stability and accuracy will reflect those of the
selected MCM oscillator.
Specifications:
Waveform Sinusoid
Amplitude 13 ±2 dBm/1V
rms
Harmonic -35dBc
Non Harmonic <-65dBc 10k - 500MHz
Connector Type Coaxial, BNC
Accuracy Locked to MCM oscillator
Stability Same as MCM oscillator
1.2.8.3 10 MHz Output OSM
The 10MHz output OSM provides 4 reference
frequency outputs at 10MHz. The OSM buffers and
distributes a 10MHz signal that is generated directly on
the MCM. The stability and accuracy will reflect those
of the selected MCM oscillator.
Specifications:
Waveform Sinusoid
Amplitude 13 ±2 dBm/1V
rms
Harmonic -35dBc
Non Harmonic <-65dBc 10k - 500MHz
Connector Type Coaxial, BNC
Accuracy Locked to MCM oscillator
Stability Same as MCM oscillator

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MANUAL P/N 900000178 REV B
1.2.8.4 NTP Ser er OSM
The NTP Server module enables the Master Clock
System to act as an NTP server over an Ethernet
network. Designed with security in mind, the NTP
server module uses a custom network stack that
enables it to ONLY act as an NTP server, and prevent it
from being used as a gateway to compromise the entire
system.
Specifications:
Signal Format Ethernet 10/100BaseT
Protocols NTPv3 RFC1305
NTPv4 RFC 5905
Authentication MD5, SHA-1
Connector Type RJ45
No of Outputs 2
1.2.8.5 PTP Grandmaster OSM
The PTP Server module enables the Master Clock
System to act as a Precise Time Protocol (PTP)
Grandmaster over an Ethernet network. The PTP OSM
is fully compliant with the PTP protocol, and is capable
of providing time synchronization for up to 256 clients.
Designed with security in mind, the PTP server module
uses a custom network stack that enables it to ONLY
act as a PTP server, and prevent it from being used as
a gateway to compromise the entire system.
Specifications:
Signal Format 10/100/1000BaseT
Protocols PTPv2 (IEEE1588-2008)
Resolution 8ns packet timestamp resolution
Accuracy 20ns 3σ(crossover cable)
PTP Profiles Default, Telecom, Enterprise,
Power
Modes Unicast, Multicast
Connector Type SFP
Management Web GUI
No of Outputs 2
Max no of cards 3
1.2.8.6 Extended Performance PTP
Grandmaster OSM
The Extended Performance PTP Server module
enables the Master Clock System to act as a Precise
Time Protocol (PTP) Grandmaster over an Ethernet
network. The PTP OSM is fully compliant with the PTP
protocol, and is capable of providing time
synchronization to up to 1024 clients. Designed with
security in mind, the PTP server module uses a custom
network stack that enables it to ONLY act as an NTP
server, and prevent it from being used as a gateway to
compromise the entire system.
Specifications:
Signal Format 10GbE
Protocols PTPv2 (IEEE1588-2008)
Resolution 8ns timestamp resolution
Accuracy 20ns 3σ(crossover cable)
PTP Profiles Default, Telecom, Enterprise,
Power
Transmission Unicast, Multicast
Connector Type SFP
Management Web GUI
No of Outputs 2
Max no of cards 2
1.2.8.7 BCD Time Code Output OSM
The BCD time code OSM provides 4 BCD time code
outputs. The OSM buffers and distributes a BCD signal
that is generated directly on the MCM. The stability and
accuracy will be those of the selected MCM. The
propagation delay compensation feature is not available
on this OSM.
Specifications:
Format ICD-GPS-060B
Signal Format Per ICD-GPS-060B
40 bits
Rising Edge On Time
Rise Time <100ns
1PPS coherence < 100ns of rising edge
Electrical Per RS422/485
1.2.8.8 T1/E1 OSM
The T1/E1 OSM provides 16 Framed T1/E1 outputs.
Each output may be selected independently. The
stability and accuracy will be those of the selected
MCM oscillator.
Specifications:
Waveform (T1) DS1 framed all ones, SF,
D4, ESF, SSM support
Waveform (E1) E1 framed all ones,
CRC4 and CAS
multiframe SSM support
No of outputs 16
Impedance software selectable
Standards ANSI T1.102, T1.403
ITU-T G.703
Short/Long Haul User programmable
Connector Type 62pin D receptacle
Breakout Panel / Cable 1U Panel / 36” Cable
Breakout connector RJ45
Accuracy Locked to MCM oscillator
Stability Same as MCM oscillator

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MANUAL P/N 900000178 REV B
1.2.8.9 Optical Crosslink OSM
The Optical Crosslink Module is a unique feature of the
M212. When installed, it allows a second M212 to be
synchronized as a slave chassis. If both chassis have
a primary reference installed (e.g. GPS) then the two
MCM’s operate as peers. Peering provides additional
redundancy, as well as providing additional references
to detect failures.
When a duplex cable is provided, the optical link
provides seamless and automatic propagation delay
compensation. A security mode allows the optical link
to be operated in a single direction form Master to
Slave over a single fiber.
Specifications:
Connector Type LC
No of Outputs 2 bi-directional per OSM
Synchronization Accuracy
Phase Measure Accuracy 1ns
End to End Accuracy <5ns synchronization
Optical
Wavelength Single Mode 1300nm
Safety Class 1 CDRH/IEC 825
Range
2
2000m 9/125um cable
1.2.8.10 1 PPS Distribution Module
The 1PPS Distribution Module provides 4 1PPS
outputs. The OSM buffers and distributes a 1PPS
signal that is generated directly on the MCM. The
stability and accuracy will be those of the selected
MCM. The propagation delay compensation feature is
not available on this OSM.
Specifications:
Rising Edge On Time
Rise Time <15ns
Fall time <60ns
Pulse Width 20 µs ±5% default.
Amplitude 10V ±10% into 50Ω
Source impedance link selectable 50Ω/lowZ
1.2.8.11 Octal Distribution Module
The Octal Distribution Module provides up to 8 RS232
or RS422 output ports that can be used to broadcast a
time of day message. All output formats are identical,
and selected at the MCM. One channel can be
dedicated as an input channel to provide the MCM with
a NMEA $GGA message as an input timing reference.
Selection of RS232/422 is available on a per channel
using user-installed push on links
Specifications
No of channels 8
Connector Type 62pin D receptacle
Electrical
1.2.8.12 Ha e Quick Distribution Module
The Have Quick Distribution Module provides 4 Have
Quick time code outputs. The OSM buffers and
distributes a Have Quick signal that is generated
directly on the MCM. The stability and accuracy will be
those of the selected MCM. The propagation delay
compensation feature is not available on this OSM.
Specifications:
Format ICD-GPS-060A
Signal Format Per ICD-GPS-060A
(Consult factory)
STANAG 4430 HQ2A
Rising Edge On Time
Rise Time <100ns
1PPS coherence < 100ns of rising edge
Amplitude Logic 1 2.4Vmin
Logic 0 0.25V max
1.2.8.13 Modulated Time Code
Distribution Module
The Modulated Time Code Distribution Module provides
4 AC modulated time code outputs. The OSM buffers
and distributes the same time code signal that is
generated directly on the MCM. The stability and
accuracy will be those of the selected MCM. The
propagation delay compensation feature is not available
on this OSM.
Specifications:
Time Code Output
Signal Format B122, B124 2137
(Consult factory for other
formats)
Control Functions B124 per IEEE1344
Rate 1kHz modulated
Modulation ratio 10:3 ±10%
Amplitude 5V
p-p
±20%
Load impedance
>50ohm
RS232
RS422/485
Channel selection push on link
Input channel format NMEA $GGA
2Consult Factory for longer range or multimode

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MANUAL P/N 900000178 REV B
2 Setup
Remove the Master Clock System from the shipping carton. The following items
should be included in the shipment:
1x Master Clock System
2x Power supply cables
1x CD-ROM containing User Manual and Utility Software
2.1 Installation
2.1.1 Mounting
The Master Clock System can be installed into a 19” rack mount cabinet using rack
slides. Slides are installed using 10- 2 UNF-2B hardware.
Optional Rack Mount Slides:
P/N 00200012 , SLIDE, RACK, 24", 21" TRAVEL, 85 LB
P/N 002000150, SLIDE, RACK, 28", 27" TRAVEL, 80 LB
Original Manufacturer: General Devices Chassis Trak Type C 00.
2.1.2 Power
Insert the power cord of the Master Clock System into an electrical socket to power
up the unit.
If dual redundant power is required, connect both power sources to independent
power sources
Note that the Master Clock System uses a custom power cable designed to lock in
place. Be sure to only use power cables made by Brandywine Communications
Power Cable Part Number:
2.1.3 Ethernet
Connect one end of an Ethernet patch cable to the Master Clock System Ethernet
located on the Master Clock Module. Connect the other end of the Ethernet cable to
the network with an Ethernet hub or switch.

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MANUAL P/N 900000178 REV B
3 Configuration
3.1 Status Page
Upon connecting to the M212’s web interface, the first screen that will be displayed
is the M212 Status page (Figure 2).
Figure 2. M212 Status Page.
The fields listed in this window and their explanation are listed in Table 1 below.
Table 1. M212 Status Page Descriptors
FIELD
DESCRIPTION
Firmware
The
name
of
the
firmware
installed
on
this
system.
Version
The
current
firmware
version
Runtime
The
amount
of
time
that
the
system
has
been
powered
on
Date
The
current
system
date
and
time
Web
Version
The
current
version
of
the
web
interface
PLL
Status
The
current
status
of
the
Phase
Locked
Loop
(PLL)
Current
Ref
The
current
input
reference

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MANUAL P/N 900000178 REV B
Table 1. M212 Status Page Descriptors
FIELD
DESCRIPTION
TFOM
Time Figure of Merit
(TFOM), a numerical rating of the
reliability of the current time output, with 1 being the highest,
and 9 being the lowest
System
Time
The
current
year,
day
of year,
and
time
that
the
system
is
using.
Sys Time Last Set
By
The timing source that last set the system time.
Sys Time Last Let
at
The time that the system time was last set by an external source
Leap Second
Epoch
The date and time of an impending leap second if one is
pending.
Leap
Second
State
Will say whether or not a leap second is pending. Leap second
state can be:
Not Pending - No Future Leap Second has been announced by
International Earth Rotation and Reference Systems Service
(IERS).
Pending - A leap second has been announced by IERS but it has
not happened yet.
Past Pending - A leap second was announced and has already
occurred.
Leap
Sec
Info
Last
Set By
Displays
the
reference
source
that
a
leap
second
was
last
set
up.
Stratum
The
current
reference
stratum
that
the
M212
is
operating
in.
Ref
Phase
Error
The
reported
phase
error
of
the
reference
source.

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MANUAL P/N 900000178 REV B
3.2 System Page
The System page on the M212 is broken down into two tabs, the Inventory tab and
the settings tab.
3.2.1 System In entory
The System Inventory tab (Figure ) shows system inventory information.
Figure 3. System In entory Tab
The fields on the system inventory tab are listed in Table 2 below.
Table 2. M212 System In entory Tab Descriptors.
FIELD
DESCRIPTION
System
Serial
Number
The
serial
number
of
the
M212
system.
System
Hardware
Revision
The
hardware
revision of
the
M212
system.
Chassis
Serial Number
The
serial
number
of
the
M212
chassis.
Chassis
Hardware
Version
The
hardware
version
of
the
M212
chassis.

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MANUAL P/N 900000178 REV B
3.2.2 System Settings
The system settings tab is used to change global settings with the M212, such as the
system password, time zone and daylight saving time offset.
Figure 4. M212 System Setting Tab in View Mode
The fields of the system settings tab are listed below in Table .
Table 3. M212 System Settings Tab Descriptors.
FIELD
DESCRIPTION
General
Disable All
Outputs
Indicates
if
all
outputs
from
the
M212
have
been
disabled
for
diagnostic purposes.
IA-Mode
Indicates if the M212 is currently running in Information
Assurance (IA) mode or not.
Clock
Type
Indicates
if
the
M212
is
currently
operating
as
a
Master
Generation Unit (MGU), or as a Secondary Distribution Unit
(SDU).

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MANUAL P/N 900000178 REV B
Table 3. M212 System Settings Tab Descriptors.
Change System
Password
Change
the
login
password
to
access
the
web
interface
Delay
|
Output
Types
HaveQuick
Output
Indicates the delay compensation adjustment on the M212’s
HaveQuick output
IRIG
-
B
Output
Type
Use
this dropdown menu to select the type of IRIG
-
B signal
format the M212 should output
IRIG-B-Output Indicates the delay compensation adjustment on the M212’s
IRIG-B output
1
st
1PPS Output Indicates the delay compensation adjustment on the M212’s
1PPS output
BCD 40-Bit
Output
Indicates the delay compensation adjustment on the M212’s 40-
bit Binary Coded Decimal (BCD) output
Local
Time
Time
Zone (min)
Indicates
the
time
zone
offset
from
UTC
in
minutes
DST
Offset
(min)
Indicates
the
Daylight
Savings
Time
(DST)
offset
from
standard
time in minutes
DST
Start
Month
Indicates
the
month
that
DST
starts
on.
DST
Start
DOW
Indicates
the
Day
of
Week
(DOW)
that DST
starts
on.
DST Start
DOWOM
Indicates the Day of Week of Month (DOWOM) that DST starts
on
DST
End
Month
Indicates
the
month
that
DST
ends
on.
DST
End
DOW
Indicates
the
Day
of
Week (DOW)
that
DST
ends on.
DST
End
DOWOM
Indicates
the
Day
of
Week
of
Month
(DOWOM) that
DST
ends
on
Click the Change Settings button to switch the system settings tab into edit mode
(Figure 5).
To save any settings adjustments, click on the “Submit” button.

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MANUAL P/N 900000178 REV B
Figure 5. M212 Settings Tab in Edit Mode