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Functional description
For deflection units with digital interface only
4.4
Digital interface
The deflection unit is connected to a RAYLASE control card using the 25-pin D-SUB connect-
or. All signals are compatible with RAYLASE's extended function XY2-100 standard.
If the deflection unit is also fitted with a 9-pin D-SUB connector, the power supply to the de-
flection unit comes from this additional connector. Deflection units that are not fitted with a 9-
pin D-SUB connector are powered by the digital interface. Refer to the following connection
table:
J1
PIN
1
2
1
3
14
4
5
13
6
25
7
25 PIN D-SUB
8
9
10
11
12
13
I= Diff. Input, nc = Not connected (not used) O = Diff. Output
1
) If there is no separate 9-pin D-SUB power input, the power supply is provided by the digital interface.
The power supply must be provided by the OEM customer.
Specifications
Diff. Input-, Diff. Input+
Input voltage
max. ±24.0V
Input threshold
200mV
Hysteresis
typ. 45mV
Input impedance 120Ω
ESD protection
±15kV
Power supply
Designation Voltage
-VSS
-15V to -18V
+VSS
+15V to +18V
MN051_v1.0.5
Signal
I
-SENDCLOCK
I
-SYNC
I
-X CHANNEL
I
-Y CHANNEL
I
-Z CHANNEL
O
-HEAD-STATUS
I
-P-DAC CHANNEL
nc
1
Nc
+VSS
1
nc
+VSS
GND
1
1
nc
-VSS
1
1
nc
-VSS
Diff. Output-, Diff. Output+
-
Output low
Output high
ESD protection
Current
Residual rip-
ple
≤100mV
2.5A
2.5A
PIN
Signal
14
I
+SENDCLOCK
15
I
+SYNC
16
I
+X CHANNEL
17
I
+Y CHANNEL
18
I
+Z CHANNEL
19
O
+HEAD-STATUS
20
I
+P-DAC CHANNEL
21
nc
1
1
22
nc
1
23
GND
24
GND
1
25
nc
---
---
max. 0.6V
min. 2V @ 50Ω
±10kV
Noise
≤0.5% DC at
30MHz
2-Axis Laser Beam Deflection Units
Chapter 4
1
+VSS
1
-VSS
max. 40mA
max. 40mA
15
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