TCNM-ACBB1 Installation Manual
7
p/n 174477 Rev. A
Main Interface
RS232
RS485FD
RS485HD
TX
TX+
RTX+
RTS
TX-
RTX-
RX
*RX+
CTS
*RX-
SGND
SGND
SGND
The input power signals Vdc, GND, and Earth as well as the network signals REF, ID+, ID-, and Shield are
repeated to facilitate system cabling. In this way, the power and network busses can enter and exit the
TCNM-ACBB1 from different spring clamps but be physically connected together.
Power Source Jumper Settings
For most applications, input power is provided through the dedicated spring clamp connectors inside
the TCNM-ACBB1. However, TCNM-ACBB1 may accept power from the connected reading device
through the 25-pin connector. This is useful, for example, to pass power to connected accessories such
as Encoder. See the relative reading device Reference Manual for details.
To power TCNM-ACBB1 from the reading device, place the power source jumper in the "power from
device" position as indicated.
Power Source Jumper Settings
Shield to Protection Earth Jumper Settings
The network cable shield (Shield) can be connected to Earth Ground (Earth) either directly or through a
filter circuit. If the jumper is left open, the network cable shield (Shield) is floating.
Shield to Protection Earth Jumper Settings
Chassis Grounding Jumper Settings
Select the reading device chassis grounding method by positioning a jumper. In this way the reading
device chassis can be connected to earth ground (only if pin Earth is connected to a good earth ground).
