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Pelco Manual C557M (10/99) 7
FIXED SPEED – LRD41C21-*
The LRD41C21-* Receiver/Driver is compatible with either Coaxitron
®
control sys-
tems utilizing the standard 15-bit command protocol and the extended 32-bit com-
mand protocols or with Pelco’s serial RS422 control system utilizing “D” or “P” type
protocols.
The Coaxitron
®
portion of the receiver/driver operates on the unique principle of
transferring control data and video on the same line. A train of pulses containing
control data is superimposed on the vertical blanking interval of the video signal.
This transmitted train of control data can originate from a variety of Pelco transmit-
ter systems, including the CM7500, CM8500, CM9500, MPT9500 and standard
Coaxitron
®
controllers.
The LRD41C21-* fixed series is capable of the following operational functions:
LRD41C “21” Type Operational Functions
1. Pan Left 5. Zoom In 9. Iris Open
2. Pan Right 6. Zoom Out 10. Iris Close
3. Tilt Up 7. Focus Near 11. Auto Random Scan
4. Tilt Down 8. Focus Far
Additional receiver/driver features include:
• 64 presets • Adjustable Lens Voltages
• 8 inputs for preset Alarms • Control Without Video
• 1 Alarm Out • Cam Sync
• 2 Relay Outputs: • Transient Suppression
Aux1 (available to user) • NTSC or PAL video
Aux2 (available to user) • Test Local Control Capability
• Aux3 (not available) • Serial Comm Port (RS422)
• Aux4 (dedicated wiper control)
• Self Test Diagnostics
VARIABLE SPEED – LRD41C22-*
The LRD41C22-* Receiver/Drivers support the same communication controls as
the LRD41C21-*.
The LRD41C22-* variable series is capable of the following operational functions:
LRD41C “22” Type Operational Functions
1. Pan Left 5. Zoom In 9. Iris Open
2. Pan Right 6. Zoom Out 10. Iris Close
3. Tilt Up 7. Focus Near 11. Auto Random Scan
4. Tilt Down 8. Focus Far
Additional receiver/driver features include:
• 64 presets • Adjustable Lens Voltages
• 8 inputs for preset Alarms • Control Without Video
• 1 Alarm Out • Cam Sync
• 2 Relay Outputs: • Transient Suppression
Aux1 (available to user) • NTSC or PAL video
Aux2 (available to user) • Test Local Control Capability
• Aux3 (not available) • Serial Comm Port (RS422)
• Aux4 (dedicated wiper control) • Full PTZ Variable speed control
• Self Test Diagnostics