MANUAL
GPS180XHS
Railmount GPS Receiver
1 Impressum
2 Content of the USB stick
3 General information about GPS180XHS
19..72VDC 100..240VAC 100..240VDC
GPS180DHS X
GPS180AHS X
GPS180DAHS X X
4 General Information GPS
5 Block diagram GPS180XHS
RS232
driver
IF-circuit
microcontroller
with RTC and
Flash EPROM
master
oscillator
correlator
D/A-converter
FPGA
programmable
logic
SRAM
data memory
antenna power
internal power
sample
clock
data
clock
clock
clock
control
voltage
data
addr/data
addr/data/control
Tx/Rx
optional
lightning
protector
antenna/
converter
unit
power supply
GPS-signal (IF)
LO-frequency
RG58-cable up to 250 meters
without additional amplifier
RS232 COM0
power
19-72VDC (DHS)
100-240VAC (AHS)
100-240VDC (DAHS)
GPS180xHS
6 GPS180 Features
6.1 Time Zone and Daylight Saving
6.2 Asynchronous Serial Port
7 Installation
7.1 Skilled/Service-Personnel only: Replacing the Lithium Battery
7.2 Power supply
7.3 Mounting the GPS Antenna
◦
◦ ◦
7.3.1 Example:
7.3.2 Antenna Short-Circuit Assembly with surge voltage protection
free view to the sky!
Surge Voltage Protector
connect to earth by using the mounting bracket.
GPS
Antenna
s
S
a
t
P
e
l
l
i
G
t
e
a
n
t
e
n
a
n
As short as possible!
cable slot
Ground lead to PE Rail
(Protective Earth)
- fastened
with cable shoe
2
Cable / 16mm
Meinberg GPS
N-Norm male female
or BNC male female
N-Norm male
N-Norm female
N-Norm female
N-Norm male
N-Norm female
N-Norm male
7.4 Powering Up the System
µ
8 The Front Panel Layout
8.1 FAIL LED
8.2 LOCK LED
8.3 SUB-D Connector Assignments
RS-232
COM0
TxD
RxD
GND
1
6
5
9
8.4 Front views
RS-232
COM 0
500mA SB
F
A
I
L
L
O
C
K
+ Vin
- Vin
GPS
Ant
1
6
5
9
19-72VDC
GPS180DHS
RS-232
COM 0
500mA SB
F
A
I
L
L
O
C
K
GPS
Ant
1
6
5
9
100-240VAC
47-63Hz
GPS180AHS
RS-232
COM 0
500mA SB
F
A
I
L
L
O
C
K
100-240 VDC
85-264 VAC
+ Vin
- Vin
GPS180DAHS
GPS
Ant
1
6
5
9
9 Technical Specifications GPS180XHS
◦
9.1 Technical Specifications GPS Antenna
◦
4444
240240
140140
450450
7070
M6M6
180180
6868
8484
66
9.2 Time Strings
9.2.1 Format of the Meinberg Standard Time String
9.2.2 Format of the Meinberg GPS Time String
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