Siemens SINUMERIK 840D sl Manual page 31

Table 4-4
Connector
Interfaces for direct keys
X11 on the operator panel (OP) fronts can be used to fetch the state of the direct keys. The
connection of a 20-pin ribbon cable allows the direct keys to evaluate the following components:
● Direct key module (DTM)
● X70 in the machine control panels (MCP, MPP) and the handwheel connection module
(HAM)
● X205 on the Thin Client Unit (TCU)
The signals are then forwarded to the control over the various communications networks. Note
that DTM and HAM can be operated only with PROFIBUS DP.
Operator panel front: OP 012
Manual, 05/2019, A5E36371591B AB
Allocation of the LVDS display interface
Pin Name
1/2 P5V_D_fused
3 RXIN0-
4 RXIN0+
5/6 P3V3_D_fused
7 RXIN1-
8 RXIN1+
9/10 GND
11 RXIN2-
12 RXIN2+
13/14 GND
15 RXCLKIN-
16 RXCLKIN+
17/18 GND
19/20 N.C.
4.1 Pin assignment of the interfaces
Type Meaning
VO +5 V display supply voltage (fused in PCU/
TCU)
I LVDS input signal
VO +3.3 V display supply voltage (fused in PCU/
TCU)
I LVDS input signal
- System ground (reference potential)
I LVDS input signal
- System ground (reference potential)
O LVDS cycle clock signal
System ground (reference potential)
-
Not connected
Connecting
Bit 0 (-)
Bit 0 (+)
Bit 1 (-)
Bit 1 (+)
Bit 2 (-)
Bit 2 (+)
(-)
(+)
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