Installation guide
Local Control Network
2
Hinweise:
!
Keep distances to power supplies! The connecting cable (I-port extension) between
!
an LCN-IVH/-IV to another LCN-IV´s is a signal line.
!
If the LCN-IVH/-IV is being used as an impulse sensor, no other groups may be
connected to the I-port (except the impulse generator.)
!
Connect NO external voltages to the LCN-IV!
!
The terminal “GND” on the LCN-IV is on the N potential of the connected LCN module.
!
The I-port extension should be carried out using a shielded cable. The shielding is not to
be connectedt!
!
If the LCN-IV is being used as an impulse counter, the cable to the impulse contact
should be as short as possible. An extension is possible (max. 50m) when using two
LCN-IVH/-IV´s.
Guidelines to I-port connections:
The I-connecting cable to the LCN module can be extended up to a maximum of 50m with
an LCN-IV (all diverted distances added together), use
³
0,8mm
Æ
.
The distance from the LCN-NUI to a maximum of 2 GT-key sensors, must not be longer
that 20m. Only a maximum of five I-port periphery devices may be connected.
Please see also ”TDi connections from peripheries” on www.LCN.de
LCN-IV/-IVH
®
