8
Front and Rear Panels
B1234
Arb
it
e
r Sy
st
e
m
s
Serial Number
Made in USA
ANTENNA
FIBER
COM1
RELAY
COM2
INTERNAL OPTION SPACE
POWER B
POWER A
1
I/O PORTS
2
3
ANTENNA
STATUS
Figure 2.3: Model 1201B/C Rear Panel Description
2.3.1
Power Inlet
To cover most of the possible power inlet voltages, the Model 1201B/C has two optional power
supplies, Power A and Power B. Carefully examine the paperwork you received to make sure you
have correctly identified the inlet connections and voltages. Clock may have two different types of
power supplies.
Universal:
Terminal power strip with Surge Withstand Protect Circuitry (SWC), and inlet supply
with a range of 85 Vac to 264 Vac, 47 Hz to 440 Hz, and 110 Vdc to 370 Vdc. (see Figure 2.4).
Figure 2.4: Universal Power Supply Inlet Connector
L1/
DC+
L2/
DC- GND
100-350 Vdc
85-264 Vac/47-440 Hz
<30 W Typical
Low DC:
Terminal Power Strip with Surge Withstand Protect Circuitry (SWC), and inlet supply
with a range of 22 Vdc to 67 Vdc ONLY (see Figure 2.5).
Figure 2.5: Low DC Power Supply Inlet Connector
DC+ DC- GND
22-67 VDC
<30W TYPICAL
DC ONLY
-
2.3.2
Antenna Input
Figure 2.6 illustrates the female Type F, GNSS antenna input, connector. This connector also
supplies 5 Vdc through the cable to energize the antenna and inline preamplifier if installed. For
further information, see Chapter 4, Antenna and Cable Information.
Figure 2.6: GNSS Antenna Connector
ANTENNA
While the optional inline preamplifier draws approximately 25 mA at 5 Vdc, any voltage drop
at the antenna would occur only due to the DC resistance of the antenna cable. For the longest
possible RG-6 cable run using the inline preamplifier, that voltage drop would be 0.78 Vdc.
Summary of Contents for 1201B
Page 4: ...iv ...
Page 153: ...B 7 Four Fiber Optic Outputs 135 Figure B 4 Jumper Locations ...