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Installing the MVS-8100C 1

22 Cognex MVS-8100C Hardware Manual

Using an External Sync Source

The MVS-8100C supports the use of an external source for HDRIVE and VDRIVE signals.

You can synchronize one to four cameras to the external drive signals.

Note the following points when using an external sync source on the MVS-8100C:

• Your cameras must be set in software to use genlock mode in order to synchronize

with the external source. If you’re using a color camera in genlock mode, see Using

Genlock Mode for more information.

• Connect the external HDRIVE signal to pin 22, and the external VDRIVE signal to

pin 18, of jack J6 on the MVS-8100C. Use pins 20 and 24 as ground returns. See

Table 19 on page 44 for the translation between the pins on J6 and the external

DB-25 port.

• Set jumpers JP6 and JP7 as shown in Table 5.

Note The settings for jumpers JP6 and JP7 affect all four camera ports. If

you set these jumpers to use an external sync source, then you must

use the external sync source on all cameras connected to the

MVS-8100C.

Jumper Factory Default Setting Setting for External Sync Mode

JP6 Pins 2-3 covered. Routes the

VDRIVE signal from the

MVS-8100C to the camera.

Pins 1-2 covered. Routes the

VDRIVE signal to the MVS-8100C

from an external source

connected to jack J6.

JP7 Pins 2-3 covered. Routes the

HDRIVE signal from the

MVS-8100C to the camera.

Pins 1-2 covered. Routes the

HDRIVE signal to the MVS-8100C

from an external source

connected to jack J6.

Table 5. Jumper settings for external sync mode

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 55 56

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Pulnix TM-7EX Manuel Page 22