Brandywine’s Modular Master Clock represents the next generation of modular timing systems. Built on the highly successful High Performance Timing System, the Modular Master Clock is a leap forward in design.
Features:
- Redundant design with multiple signal paths built in for high-availability.
- The modular design is highly adaptable and can be field-upgraded, allowing a future-proof solution
- 12 expansion slots in the 2U version and 6 expansion slots in the 1U variant.
- Ideal for applications that require an unusual mix of interfaces
- Unique optical crosslink architecture for either Master-Slave hierarchical setups or Master-Master crosschecking and failover
- 2U version is operated by an intuitive touch-screen interface, a first for any master clock system.
- All key components are hot-swappable and are dual redundant.
- The Output Signal modules are hot-swappable from the front, eliminating the need to disconnect cables.
- Secure Management interface through SNMPv3 and encrypted password access from the front panel
At the center of the system are Brandywine’s powerful dual-redundant Master Clock Modules (MCM), which are capable of receiving time from a GPS signal, either from an internal SAASM or standard CA code receiver, or external reference sources, such as IRIG-B, 1PPS, 10 MHz or HaveQuick.
The output signals for the Modular Master Clock are generated by up to 12 hot-swappable Output Signal Modules (OSM), and are ideal for custom solutions or future expansion. Available modules include NTP module, Analog Low-Phase-Noise frequency module, IEEE-1588 PTP module, time code modules such as IRIG A, B, G, H, and NASA 36, Pulse Rates, PTTI, as well as an optical crosslink module.
Signal Reference Inputs
C/A code GPS Receiver (optional)
Receiver Type GPS L1 C/A, SBAS L1 C/A
GPS Reception 14 channels (GPS, SBAS)
Sensitivity Tracking: -159 dBm
Acquisition: -147 dBm
Accuracy 15ns (1σ) (@ -130 dBm)
TTFF Hot Start: <5 sec (@ -130 dBm)
Warm Start: 70 sec (@ -130 dBm)
Cold Start: 70 sec (@ -130 dBm
SAASM GPS Receiver (optional)
Receiver Type GB-GRAM Type II
Keyfill cable DAGR compatible DB15
External 1PPS Input
Signal Format Per ICD-GPS-060B
Rate 1 pulse per second
Impedance 50 ohm
External GPS Have Quick T/C Input
Signal Format Per ICD-GPS-060A, STANAG 4246 HQ2A
Rate 1 frame per second
Impedance 1k ohm
Connector Type DB15M
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 DB15M
External 10MHz Reference Input
| Frequency | 10 MHz ± 5E-11 |
| Amplitude | 8 - 15 dBm |
| Impedance | 50 Ω |
| Connector Type | BNC |
Environmental
Power
2 power supply slots are available on both 1U and 2U chassis. 2U chassis can be either AC input, DC input or a combination. 1U is single or dual AC supply only.
| AC Supply | ||
| Voltage | 90-265 VAC 50/60 Hz. 100W Maximum | |
| Connector | IEC 320 C14 (standard) MS3102A-10SL-3P (optional MS shown) | |
| DC Supply | ||
| Voltage | 18-36 VDC | |
| Connector | Barrier Terminal Block | |
Physical
| Length (depth) | 20.00" |
| Width | 17.00" |
| Chassis Width | 19.00" |
| Height | 3.47" (2U Chassis) 1.72" (1U Chassis) |
| Weight | 25 lbs. nominal (slides not included) |
Temperature
| Air Temperature | -15 to 55ºC |
| Altitude Conditions | -1500 ft to +11,000 ft |
| Airflow | 30 cfm front to side/rear. Side airflow is not obstructed by rack slides |
Shock and Vibration
| Operating Shock | MIL-STD 810F 20g/11ms |
| Bench Handling | MIL-STD-810F |
| Vibration | MIL-STD-167-1 |
| Structure-borne Noise | MIL-STD-740-2 |
EMC
FCC Part 15, Class A
IEC CISPR 22
CE
