ABB S800 I/O - Page 121

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• Passive unit used for connection and extension of the
ModuleBus
• DIN rail mounting.
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The TB805 ModuleBus Cable Adaptor-Out and TB806
ModuleBus Cable Adaptor-In with the ModuleBus
Extension Cables, TK801V0xx, are used to extend the
ModuleBus.
Using the TB805 and TB806, I/O modules on the same
electrical ModuleBus of an I/O cluster, can be mounted
on different DIN rails. This makes the installation of I/O
Modules more flexible when laying out an enclosure
design. Please refer to Section 2.1.4.1, I/O Station with
S800 I/O for details on layouts.
The ModuleBus extension cables used with the
TB805/TB806 comes in 3 standard lengths:
• VTK801V003 - 300 mm
• TK801V006 - 600 mm
• TK801V012 - 1.2 meters.
Overall ModuleBus length must not exceed 2.5 meters
including all cables and MTUs.
The TB805/TB806 mounts on the standard DIN rail.
It has a mechanical latch that locks it to the rail. It is
grounded to the DIN-rail through a metallic spring
connector. The latch can be released with a screwdriver.
DB25 Female
Connector (X2)
TB805 ModuleBus
Connector (X1)
14
1
13
25
DB25 Male
Connector (X2)
TB806 ModuleBus
Connector (X1)
1
13
14
25