LTM-DV4X1
Vertical Interval
IEEE 1394 DV Switcher
LTM-DV4X1 User Manual
CE
© 2003 Laird Telemedia.
800-898-0759 • 845-339-9555 • 2000 Sterling Road • Mount Marion, NY 12456 • www.lairdtelemedia.com
- Page 1 -
LTM-DV4X1
Vertical Interval
IEEE 1394 DV Switcher
The LTM-DV4X1 DV switcher is a glitch-less DV stream switcher. Up to 4 independent, nonsynchronized, DV inputs can be connected to it. The output will switch on command between
any one of the inputs to any other at the frame boundary with no glitches, that is no extra
nor missing data. The input signals can have widely different time base references and the
switcher will accept and adapt in a manner visually transparent to the user.
Switching is controlled by one of three ways: Manually, by direct buttons on the Front Panel;
Remotely, by a contact closure GPI input; or by an RS-232 serial communication.
The LTM-DV4X1 isolates the output from the inputs. Each input does not see any of the other
inputs nor does it see the output and in turn is not seen by its Host as a device. Consequently,
only the DV stream is switched and commands are not passed through by the output to any
of the inputs. Each input DV stream is assumed to be on channel 63. The output is on channel 63 on power up but can be changed by the Host to any other legal number. The output
appears as a camera device to other 1394 nodes on the output’s network.
• Glitch-free switching of non-synchronized media sources
• Small size, 1U half rack
• GPI Control Interface
• Serial Control Interface
• Quick switching time, less than 3 frames
• Can control multiple switchers through one serial interface
• Appears as a camera to other devices connected to the output
F
EATURES
DESCRIPTION
800-898-0759 • 845-339-9555 • 2000 Sterling Road • Mount Marion, NY 12456 • www.lairdtelemedia.com
- Page 2 -
LTM-DV4X1
Vertical Interval
IEEE 1394 DV Switcher
INPUTS: 4 DV IEEE-1394 Firewire using 6-pin connectors
Node is no device
Isochronous channel : 63
OUTPUT: 1 DV IEEE-1394 Firewire using 6-pin connectors
Node device is camera
Isochronous default channel: 63
Note: Isochronous operating channel can be changed by a Host device
SWITCHING RESPONSE TIME: 2min. 3max frames
FRAME RATE LOCKING RANGE: ±500ppm
FRAME RATE LOCKING RESPONSE TIME: 16 frames max
CONTROL: GPI max voltage ±10V
POWER: Input current at 12V, 0.22A typical
Input current at 7V, 0.39A typical
Max input voltage, 24VDC
Min input voltage, 6VDC
Temperature, 0°C min - 55°C max
STORAGE: Temperature, -20°C min - 70°C max
SPECIFICATIONS
Loading...