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Printer Friendly
Data Sheet (pdf)
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For Information Call
888-886-7465 |
System Features:
 Multiple
Outputs:
1PPS, 5 MHz, 10 MHz
PTTI, IRIG, Have Quick
and 2 Frequency
Programmable Outputs
Ext.
Reference Inputs
1PPS or PTP
GPS
Receiver:
Standard Civil C/A-Code
(L1) Frequency or
SAASM GB-GRAM
or SAASM MRU Military
C/A-P(Y)-Codes (L1,L2)
Low Phase Noise
NTP
Server / PTPv2
Grandmaster / Slave:
Telnet, SSH, SNMP
MIB II, IPv4 and IPv6
User
Interface
Zyfer Monitor™ GUI
Calibration:
All
units are calibrated with
an in-house standard
traceable to UTC |
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AccuSync II® Model 405 |
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The AccuSync II® from FEI-Zyfer provides an unparalleled
array of standard and user configurable options for
customers requiring a cost effective, versatile GPS time and
frequency reference in a compact, rack-mountable chassis.
The AccuSync II incorporates the latest developments in time
and frequency technology including off the shelf support for
IEEE 1588-2008 Precision Time Protocol (PTPv2) and the latest
civilian C/A or military
SAASM GPS receivers
(GB-GRAM
or MRU).
The AccuSync II was developed to meet the precise time and
frequency reference needs for most applications. The design
incorporates support for the most common output interfaces,
including 5 and 10MHz Low Phase Noise (LPN) frequency
references, multiple time references (PTP, NTP, IRIG, Have
Quick, TOD) and 1PPS reference outputs. Additionally, the
AccuSync II provides user configurable options such as
programmable DDS Frequency Synthesizer outputs, selectable
IRIG output types and multi-use 10/100 Ethernet ports. The
system may also be configured as a PTPv2 Grandmaster or
Slave unit.In the event of GPS signal loss or lack of other external
reference source, the AccuSync II will continue to provide
accurate time and frequency (holdover) using our standard
high stability crystal oscillator (OCXO). For customers
requiring extended holdover, a Rubidium (Rb) atomic clock
oscillator is available.
As with all FEI-Zyfer products, the AccuSync II uses the
latest FEI-Zyfer proprietary learning algorithm to
compensate for external and internal environmental
characteristics that affect accuracy, ensuring the most
accurate GPS time and frequency reference available. All
FEI-Zyfer products are calibrated with an in-house standard
traceable to UTC.
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Rear Panel View |
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1 PPS - 5
MHz - 10 MHz - PTTI - IRIG B - HAVE QUICK - TOD - DDS -
ETHERNET - RS-232 |
AC or DC
Power Options |
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Accessories |
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Antennas and Accessories |
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Time,
Frequency and Communication Inputs / Outputs |
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Qty. |
Description of
Rear Panel Inputs / Outputs |
Conn. Type |
I/O |
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1 |
1PPS
External Reference |
BNC |
Input |
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4 |
1PPS
TTL into 50Ω |
BNC |
Output |
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6 |
10
MHz Sine Wave Output, 13 dBm |
BNC |
Output |
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4 |
5
MHz Sine Wave Output, 13 dBm |
BNC |
Output |
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2 |
DDS
(Freq. Synthesizer) TTL Software programmable 1 kHz
to 50 MHz (in 10 Hz steps) |
BNC |
Output |
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1 |
PTTI
Port: BCD, Have Quick Time, 10 VDC 1PPS and 1PPM |
DE-9S |
Output |
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1 |
IRIG
B Output, user selectable AM or DC shifted |
BNC |
Output |
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1 |
Have Quick
Output, user selectable Have Quick II, Have Quick
PTTI, and Extended
Have Quick |
BNC |
Output |
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1 |
TOD,
Serial I/O, RS-232 with Alarm Status pins |
DE-9S |
Output |
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Communication
and Control I/O |
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2 |
10/100
Ethernet (NTP, PTPv2 IEEE-1588, SNMP, MIB II,
TELNET, SSH, IPv4, IPv6) |
RJ-45 |
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2 |
Control
Ports (1 on Front Panel, 1 on Rear Panel, RS-232C) |
DE-9S |
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Output
Specifications (a,b) |
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 1
PPS Output: |
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Oscillator
Type: |
Rubidium |
OCXO |
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Accuracy(c): |
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GPS Locked: |
< 100ns at 95%
probability to UTC |
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Coasting
(Holdover) (a,b): |
< 3µS @
24hrs |
<
7µS @ 24hrs |
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10
MHz Output: |
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Oscillator
Type: |
Rubidium |
OCXO |
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Accuracy(c): |
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GPS Locked: |
<
1E-12 |
<
1E-12 |
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Coasting
(Holdover) (a,b): |
< 1E-11 |
<
1E-10 |
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Phase
Noise: |
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Oscillator
Type: |
Rubidium |
OCXO |
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1Hz: |
N/A |
-90
dBc/Hz |
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10Hz: |
-100
dBc/Hz |
-125
dBc/Hz |
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100Hz: |
-125 dBc/Hz |
-140 dBc/Hz |
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1kHz: |
-145 dBc/Hz |
-147 dBc/Hz |
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10kHz: |
N/A |
-150 dBc/Hz |
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Short
Term Stability (Allan Deviation): |
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Oscillator
Type: |
Rubidium |
OCXO |
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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: |
< 1E-10 |
<
1E-10 |
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GPS
Receiver Options |
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Standard
GPS Receiver - Civil C/A-Code: |
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Type: |
12 channel, parallel
tracking |
| Frequency: |
1575.42MHz
(L1) |
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Code: |
C/A |
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Acquisition
Time: |
Warm Start: <
2 minutes, Cold Start: < 20 minutes. |
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SAASM
GB-GRAM GPS Receiver - Military P(Y)-Code (d): |
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Type: |
12 channel, continuous
tracking |
| Frequency: |
1575.42MHz
and 1227.60MHz (L1 & L2) |
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Code: |
C/A and P(Y) |
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Acquisition
Time: |
Warm Start: <
2 minutes, Hot/Cold Start: Dependent on
Initialization Device (e). |
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Keyload
Interface: |
DS-102 (Red &
Black-key) |
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SAASM
MRU GPS Receiver - Military P(Y)-Code (d): |
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Type: |
24 channel, simultaneous tracking
of L1, L2 and C/A codes |
| Frequency: |
1575.42MHz
and 1227.60MHz (L1 & L2) |
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Code: |
C/A and P(Y) |
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Acquisition
Time: |
Warm Start: <
2 minutes
Hot/Cold Start: Dependent on Initialization Device (e). |
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Keyload
Interface: |
DS-102 (Red &
Black-key) |
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Power
Options |
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AC Power: |
100 - 240 VAC,
50-60 Hz, 60W |
| DC
Power: |
36-72 VDC |
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DC
Power: |
12-36 VDC |
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Chassis
Physical Dimensions |
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Height: |
44 mm (1.75") (1U) |
| Width: |
438 mm (17.25)
(19" EIA Rack) |
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Depth: |
305 mm (12.0")
including connectors |
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Weight: |
10 lbs. (max.) |
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Environmental |
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Operating
Temperature: |
0° C to 50° C |
| Rate
of Change: |
10° C/Hour
(30° C/Hour non-destructive) |
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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 72 hours of
GPS locked operation, fixed antenna location,
antenna delays entered. |
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Ambient temperature change < plus or minus 10°
C. |
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24 hour average. |
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(d) The sale of
SAASM receivers is restricted to users
authorized by the U.S. Department of Defense. |
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(e) Dependent on the
accuracy of initialization parameters from PLGR
or DAGR handheld SAASM GB-GRAM receivers, or
other initialization devices. |
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GPS
Time and Frequency Systems