Sutter Instrument Lambda 10-3, Руководство по эксплуатации

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LAMBDA 10-3 OPERATION MANUAL – REV. 3.03 (20110829)
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9. 9. 9. 9. OPERAT OPERAT OPERAT OPERATING INSTRUCTIONS: EXTERNAL LOGIC LEVEL (TTL) ING INSTRUCTIONS: EXTERNAL LOGIC LEVEL (TTL) ING INSTRUCTIONS: EXTERNAL LOGIC LEVEL (TTL) ING INSTRUCTIONS: EXTERNAL LOGIC LEVEL (TTL)
SHUTTER CONTROL SHUTTER CONTROL SHUTTER CONTROL SHUTTER CONTROL
In addition to the control of the shutter via the keypad, serial port, USB port and the parallel
port, the direct TTL logic input can also control the shutter. However, input must be selected
and configured for the mode desired. TTL level inputs could come from a wide variety of
devices, such as cameras, imagining boards, or a parallel port.
9.1
9.1 9.1
9.1 Using the
Using the Using the
Using the Computer’s
Computer’s Computer’s
Computer’s Parallel Port for Control
Parallel Port for Control Parallel Port for Control
Parallel Port for Control
The parallel port has been used extensively for control of shutters through logic level signals.
The outputs available at pins 14 and 16 of the 25-pin parallel port are usually employed. Pin
14 corresponds to the bit that encodes the value 2 and pin 16 corresponds to the bit that
encodes the value 4. Sending a value of 2 to this port will set Pin 14 low, which closes the
shutter. Pin 14 can be set high to open the shutter by sending a value such as zero. The logic
for Pin 16 is the reverse of Pin 14. To open Shutter B, send a value of 4 to the port. To close
Shutter B, send 0 to the port. Since both shutters are controlled by the same port, you must
combine the values for the two shutters by addition if you have two shutters installed.
Table 9-1. Commands for PC parallel port control of dedicated TTL line.
SHUTTER A SHUTTER A SHUTTER A SHUTTER A
OPEN OPEN OPEN OPEN CLOSED CLOSED CLOSED CLOSED
OPEN
OPEN OPEN
OPEN 4 6
SHUTTER B
SHUTTER B SHUTTER B
SHUTTER B
CLOSED CLOSED CLOSED CLOSED 0 2
The Lambda 10-3 has two types of TTL inputs for shutter control. The first type is provided
for by the two BNC connectors on the back of the Lambda 10-3 controller case, both labeled
TTL IN. The Lambda 10-3 is shipped with this type factory configured. The second type
consists of using the Lambda 10-3’s PARALLEL PORT Pin 14 for Shutter A TTL IN and Pin
16 for Shutter B TTL IN. Both types are mutually exclusive. That is, if the BNC TTL IN
connectors on the rear of the cabinet are enabled, then pins 14 and 16 of the parallel port are
disabled, and vice versa. The TTL IN type is selected by changing a jumper on the main
printed circuit board inside the Lambda 10-3 cabinet.
Note that if the use of the parallel port pins 14 & 16 as TTL IN are disabled (i.e., the TTL IN
BNC connectors on the rear of the cabinet are enabled), the rest of the pins in the parallel
port are not affected. Remote control of the Lambda 10-3 via parallel port using commands
sent over the 8 data lines may continue unchanged regardless of which type of TTL IN
shutter control is being used (Parallel port pins 14 & 16 or BNC connectors on the rear of the
cabinet).
The TTL IN lines are switched between the external BNC connectors on the rear of cabinet
and pins 14 and 16 of parallel port by changing two jumpers inside the controller cabinet.
The following figures show the location of these jumpers, their settings, and how the two
settings are designated. When a jumper is in the “Par.” Position, the TTL IN for that shutter
(A or B) is active on the parallel port (Pin 14 and/or 16). When a jumper is in the “TTL”