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22 C1695M (8/06)
CONNECTING VIDEO INPUT
The DVR5100 automatically detects the video standard (PAL or NTSC) whenever you connect a video input. It accepts both color and black-and-
white analog video. Use the DVR5100 Remote Client to select the termination setting (HiZ or 75Ω) for each video input. Termination is set to 75Ω
by default.
NOTES:
• Enabling line lock on cameras may cause video distortion. There may be noise in the camera’s power source. If video from one or more cam-
eras is distorted, Pelco recommends disabling line lock on the camera as your first troubleshooting step.
• If a video distribution amplifier, such as a CM9760-MDA, is installed between the video source and the DVR5100, do not set the output
video level above 1 Vp-p.
To connect each video input:
1. Connect a coaxial cable to the camera or other analog video source.
2. Connect the coaxial cable to the video in connector on the rear panel.
NOTE: You may have to use a BNC installation tool to connect coaxial cables to the rear panel.
After connecting the coaxial cables to the DVR5100, you can use the SEQ video output to verify each video source (refer to Connecting Sequence
Monitor).
CAMERA CONTROL: COAXITRON
Coaxitron is Pelco’s up-the-coax technology. It requires only a coaxial cable and no other wiring or equipment. When the DVR5100 receives a
camera control command, it transmits that command up the coaxial cable to the PTZ device. Coaxitron is a single-direction protocol; the PTZ
device cannot return any data to the unit.
To enable Coaxitron operation, connect the PTZ device to the video input on the DVR5100. Since Coaxitron is disabled by default for each camera,
you must enable it on the specific video inputs.
CAMERA CONTROL USING PELCO D OR PELCO P PROTOCOLS
The DVR5100 supports Pelco D (four-wire) and Pelco P (two-wire) protocols. These protocols use a serial interface to transmit commands to the
PTZ device over separate control wires. When the DVR5100 receives a camera control command, it transmits that command to the PTZ device.
The system continues receiving video over the coaxial cable through the DVR5100. You will need a straight cable to connect the DVR5100 to each
camera. Refer to Table C for the RJ-45 pin assignments for the DVR5100.
To connect PTZ devices to the DVR5100:
1. Connect either end of the straight cable to the connector labeled I/O RS422 on the DVR5100 rear panel.
2. Connect the other end of the cable to the proper pins in the connector on the camera. Refer to the installation manual for the camera for
additional information.
3. Follow the instructions for configuring a camera to enable each PTZ device on its specific video input.
Table C. Pin Assignments for the DVR5100
DVR5100
Pin Lead
1TX+
2TX-
3-6 Reserved
7 RX-
8 RX+
Pins can be numbered in either
direction starting from the left or
the right.