Spectra MKS Cirrus LM99 - RGA Comms; Power; Analog I;O

Cirrus SP101013.111 – 10 October 2012
MKS Instruments UK Ltd., Spectra Products
18
RGA Comms
An RJ-45 socket is used for connection to the host PC.
A Cat5 STP cable MUST be used for connection to this instrument in order to comply with the immunity
requirements of the EMC directive.
See Page 4 for maximum cable lengths.
Power
The mains power switch and fused IEC socket.
Analog I/O
The Analog I/O connector is a 15-way D-Type socket.
See Page 4 for maximum cable lengths.
The Analog I/O port provides:
One analog output 0 to +10V
Four, quasi-differential analog inputs, 0 to ±10V, with a maximum voltage on the return of
±0.5V
±15V power outputs both fused at 100mA, fuses are not self resetting.
Analog Connector pin assignment.
Pin
Function
1
-15V fused
2
Analog input 4 return
3
Analog input 3 return
4
Analog input 2 return
5*
Analog input 1 (Reserved)
6,7,14
Not Connected
8
0V analog
9
+15V fused
10
Analog input 4
11
Analog input 3
12
Analog input 2
13*
Analog input 1 return
15
Analog output
Note: The total power consumption on each rail (+5V and ±15V) for both the Analog and Digital I/O
ports must not exceed 100mA.
* Analog input 1 and Analog input 1 return are reserved for use with the internal cold cathode gauge.