This single-width module is the source of the 5MHz permit signal that is integral to the operation of the abort loop.
Normal operation of the module is as follows:
As a diagnostic feature, the 5MHz permit signal may be continuously gated from the 201 module. Under such a condition, LAM will be generated and errors may be reported from page T67.
F(6)A(0) | Reads module number |
F(9)A(0) | Reset Module Logical OR with Z*S2 and power up clear. Sets normal conditions for 5MHz output and turns LAM off. |
F(28)A(0) | Continuous mode OFF For 5MHz output signal normal condition. LAM is off. |
F(30)A(0) | Continuous mode ON For 5MHz output signal diagnostic condition. LAM is asserted. |
The 201 module front panel supports the following:
N LED | (Stretched) |
LAM LED | Asserted when 5MHz output signal is continuously gated on. |
Link Reset LED | (Stretched) Flashes upon receipt of event $48 or external link reset input. |
Link Reset view LEMO | View of 100uS gate. 74128 driver, 50 Ohm compatible. |
External Link Reset In LEMO | Positive edge trigger of 100uS gate.
Input is terminated in 100 Ohms. |
Abort Link View LEMO | View of abort link signal after transmission
around the loop. This is a 5MHz square wave when the loop is made up.
74128 Driver, 50 Ohm compatible. |
Pin | Signal | Pin | Signal |
---|---|---|---|
1L | 1R | GND | |
2L | 2R | GND | |
3L | 3R | GND | |
4L | 4R | GND | |
5L | Abort Link Return Input | 5R | GND |
6L | 6R | GND | |
7L | Abort Link 5Mhz Signal Output | 7R | GND |
8L | 8R | GND | |
9L | 9R | GND | |
10L | 10R | GND | |
11L | 11R | GND | |
12L | 12R | GND | |
13L | 13R | GND | |
14L | 14R | GND | |
15L | TCLK Input | 15R | GND |
16L | 16R | GND | |
17L | 17R | GND | |
18L | 18R | GND |