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XTC/3 Operating Manual
2.3.3.2.2 Aux I/O Connector
2.3.3.2.3 Inputs
Inputs are activated by pulling the specific input's terminal to ground (<0.8V)
through a contact closure to common (GND) or with TTL/CMOS logic having
current sink capability of 2 mA (1 low power TTL load). These ports are read
every 250 ms; signals must be present during a read cycle.
Table 2-3 Aux I/O connector
Description
Pin #
XTC/3S Function
Relay 7
1, 2
Thickness Setpoint
Relay 8
3, 4
Soak 2
Relay 9
5, 6
Crystal Fail
Relay 10
7, 8
Alarms
Relay 11
9, 10
Source 1/Source 2
Relay 12
11, 12
End Deposit (Final Thickness)
TTL Output 1
13 Cruc SRC 1 Bin
18
Crucible Select 1
(if active layer is 0 or 1)
TTL Output 2
14 Cruc SRC 1 Bin
19
Crucible Select 2
TTL Output 3
15 Cruc SRC 1 Bin
20
Crucible Select 3
TTL Output 4
16 Cruc SRC 1 Bin
21
Crucible Select 4
TTL Output 5
17 Cruc SRC 1 Bin
22
Crucible Select 5
TTL Output 6
18 Cruc SRC 1 Bin
23
Crucible Select 6
TTL Output 7
19 Cruc SRC 1 Bin
24
Crucible Select 7
TTL Output 8
20 Cruc SRC 1 Bin
25
Crucible Select 8
Input 9
14
Crucible Valid
Ground
13,15,16,17
Common