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Printer Friendly
Data Sheet (pdf) |
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System Features:
 8 I/O Module Slots
Extended Option
Module Capability
Time
Accuracy:
< 50ns Peak (UTC)
GPS
Receiver:
Standard Civil C/A-Code
(L1) Frequency or SAASM
Military C/A-P(Y)-Codes
(L1,L2)
User
Interface:
Standard RS-232
Optional Ethernet I/O
(Telnet, SNMP)
Keypad, LCD display
Remote Access
Utility:
Zyfer™ Monitor
Outputs:
1PPS,
10 MHz
100+ Option Modules
Certification:
All units can be certified
to an in-house standard
traceable to UTC. |
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GSync® II
Model 402
The GSync® II
is the 2U high version of the popular and versatile
GSync®
and provides 8 Option Module slots. It is available
with either an Ovenized Quartz or a Rubidium Atomic
oscillator, as well as Civil or Military (SAASM) GPS
receiver options. In addition, the GSync II can
receive external inputs to provide internal
frequency synchronization to the accuracy of the
external source.
A wide variety of Option
Modules (100+) allows the GSync II to be configured
to meet any Time and Frequency need with Low Phase
Noise sine wave, T1/E1, Time Codes (IRIG), NTP and
other formats. See the Modules section of the
website for more information about available Option
Modules.
Additional I/O slots can be utilized by
configuring a slaved GSync II Time
and Frequency Distribution system.
For Monitor
and Control functions there is an RS-232 communications port
on the rear panel chassis, a front panel
keypad and display as well as optional Ethernet plug-in
modules providing Telnet, SNMP and Network Time Protocol.
Zyfer Monitor (Zyfer's remote access utility) provides
complete remote control, including system status, setup,
alarm logging and user management over a standard TCP/IP
connection.
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Rear Panel View |
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Comm Port,
1PPS, 10 MHz,
Antenna |
8 Input / Output
Hot-Swappable Option Module Slots |
Power
Supply
AC or DC
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Available Option Modules for
CommSync II
and GSync
Products |
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Output Specifications
(a) |
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 Frequency
Accuracy: |
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24 Hour
Average |
Rubidium
Oscillator |
Quartz
Oscillator |
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Locked to GPS |
< 1E-12 |
< 1E-12 |
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Holdover
(b)
-
first 24 hours |
< 5E-12 |
< 1E-10 |
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Time
Accuracy: - to UTC, for calibrated units
(c) |
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Rubidium
Oscillator |
Quartz
Oscillator |
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Locked to GPS |
< 50ns Peak |
< 50ns Peak |
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Holdover
(b)
-
first 24 hours |
< 3μs |
< 7μs |
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Short
Term Stability (d)
typical: |
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Allan
Deviation |
Rubidium
Oscillator |
Quartz Oscillator |
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1 sec |
< 3E-11 |
< 1E-11 |
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10 sec |
< 1E-11 |
< 1E-11 |
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100 sec |
< 3E-12 |
< 1E-10 |
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Phase
Noise (d)
typical: |
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Standard Output |
Low Noise 5MHz |
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1Hz |
< -90 dBc/Hz |
< -105 dBc/Hz |
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10Hz |
< -105 dBc/Hz |
< -130 dBc/Hz |
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100Hz |
< -125 dBc/Hz |
< -143 dBc/Hz |
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1000Hz |
< -135 dBc/Hz |
< -153 dBc/Hz |
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GPS
Receiver Options |
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Standard
GPS Receiver - Civil C/A-Code: |
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Type: |
8 to 12 channel, independent
tracking |
| Frequency: |
1575.42MHz
(L1) |
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Code: |
C/A |
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Acquisition
Time: (c) |
Warm Start: <
2 minutes, Cold Start: < 20 minutes. |
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SAASM
GPS Receiver - Military P(Y)-Code:
(e) |
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Type: |
12 channel, independent
tracking |
| Frequency: |
1575.42MHz
and 1227.42MHz (L1 & L2) |
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Code: |
C/A and P(Y) |
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Acquisition
Time: (c) |
Warm Start: < 2
minutes, Hot/Cold Start: Dependent on
Initialization Device
(f). |
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Keyload
Interface: |
DS-102 (Red &
Black-key) |
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Standard Input/Output
(GSync II Rear Panel) |
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Standard
GPS Receiver |
SAASM GPS
Receiver
(e) |
| 1PPS,
50Ω, TTL level, BNC, Ext. Sync Input |
1PPS, 50Ω,
TTL level, BNC, External Sync Input |
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RS-232
I/O connector |
RS-232 I/O
connector |
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10 MHz, 50Ω, TTL level,
BNC connector |
10 MHz, 50Ω, TTL level,
BNC connector |
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1PPS, 50Ω,
TTL level, BNC connector |
1PPS, 50Ω,
TTL level, BNC connector |
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GPS Antenna,
TNC connector |
GPS Antenna, TNC
connector |
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Keyload Interface -
DS-102 (Red & Black-key)
(g) |
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Hot Start connector
(optional)
(g) |
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Power
Input Options |
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AC Input: |
90-132 &
180-264 VAC, 130W maximum, 47-63 Hz |
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DC Input: |
Consult Factory |
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Chassis
Physical Dimensions |
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Height: |
87 mm (3.50") (2U) |
| Width: |
438 mm (17.25)
(19" EIA Rack) |
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Depth: |
381 mm (15")
including connectors |
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Weight: |
15 lbs. (max.) |
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Environmental |
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Operating
Temperature: |
0° C to 50° C |
| Rate
of Change: |
10° C/Hour |
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Storage
Temperature: |
-40° C to
+85° C |
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Relative
Humidity: |
5% to 95%,
non-condensing |
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Altitude,
Operating: |
-60m to 4000m |
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Altitude,
Storage: |
-60m to 9000m |
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Notes |
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(a) After 2 hours of
GPS locked operation, fixed antenna location,
antenna delays entered. |
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After 48 hours of continuous operation. |
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(c) 2σ (95.5%
probability). |
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(d) Detailed
specifications for various output modules: See
"Option Module User's Manual 385-8003". |
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(e) The sale of
SAASM receivers is restricted to users
authorized by the U.S. Department of Defense. |
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(f) Dependent on the
accuracy of initialization parameters from PLGR
or DAGR handheld military GPS receivers, or
other initialization devices. |
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(g) Located on front
panel. |
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GPS
Time and Frequency Systems
