Rear Panel Connections
INPUT POWER CONNECTION
The external power supply provided with the monitor accepts 100 –
240VAC @ 50 – 60Hz and outputs 12VDC @ 1.0A. This may be plugged
directly into the monitor's power jack. Alternatively, any supply from 7.5 to
48V, AC or DC with a capacity of greater than 10VA may be used.
Power-Over-Ethernet is also supported. An IEEE-802.3AT Power-Over-
Ethernet hub or injector is required. Plug the cable from this device into
the Ethernet input of the monitor.
SENSOR CONNECTIONS
Temperature sensors are connected by using the DB9 connectors
provided. There are two four-wire inputs on each connector.
Ch
Pin Function
Cable Color
A
8
Excitation C)
White
A
9
Excitation Current(-),
Green
A
4
Voltage Sense(+)
Red
A
5
Voltage Sense(-)
Black
B
6
Excitation C)
White
B
7
Excitation Current(-)
Green
B
1
Voltage Sense(+)
Red
B
2
Voltage Sense(-)
Black
B
3
Option power, 5VDC
Dual Sensor Cables (Cryo-con part number 4034-038) are provided for
each input channel. Cable color codes are shown in the table above.
Note that the shields of this cable are connected to the monitor's chassis
ground.
IMPORTANT:
The monitor requires that an Earth
Ground reference connection is made at the rear
panel. Failure to provide this connection will result in
erratic measurements and can even damage input
circuits.
The sensor cables provided connect their shields to
the monitor's chassis; Therefore, the required Earth
Ground can be made by connecting the shield wire at
the opposite end to a ground reference point. This is
usually done by connecting it to the back-shell of the
cryostat connector.
RELAY CONNECTION
Relay connections are made on the rear panel using the 3.5mm, 4-pin
detachable terminal block provided.
Pin
Function
1
Relay #1 N.O.
2
Relay #1 Common.
3
Relay #2 N.O.
4
Relay #2 Common.
Terminal block contacts are rated at 10.0A. Relay contact ratings are
10A@125 VAC, 5A@250VAC or 5A@30VDC
Cryogenic Control Systems, Inc.
PO Box 7012
Rancho Santa Fe, CA 92067
QS18I 10/18
E-mail: [email protected]
Telephone: 858-756-3900
www.cryocon.com
