Connections; Bus.devices.connection; Control.panel; 1. Motherboard - urmet domus 1061/004 Installation And Programming Manual

4. CONNECTIONS

WARNING:.All the connections must be performed when the system is unpowered. Connections providing power supply, mains and backup
battery must be performed as last operation!
Do.not.weld.the.end.of.a.stranded.conductor.in.the.points.where.the.wire.is.subject.to.a.contact.pressure..
4.1 BUS DEVICES CONNECTION
Connect.readers.and.keypads.to.the.control.panel.with.the.4-wire.bus..The.devices.must.be.daisy.chained.to.the.bus..The.order.used.to.connect.
the devices (management keypads, electronic key readers, proximity readers) to the bus is not relevant. The bus total length (that is the sum of
the single sections), according to cable dimensioning, must not exceed 500m.
In all the devices, the bus terminal pins are identified as follows:
WARNING:.If in the system are installed electronic key readers or proximity readers, it is suggested to use for the bus a 6-wire cable. So, besides
the 4 wire for bus, 2 wires will be available for the readers tamper line.
If.the.bus.line.length.exceeds.100m.and.there.are.only..devices.connected,.it.is.necessary.to.connect,.between.the.terminal.pins."LA".and."–".
and between "LB" and "–" of the two devices, 2,7kOhm resistors (the same used for input balancing).
4.2 CONTROL PANEL
4.2.1 MOTHERBOARD
LA
LB
+
-
NO2
C2
NC2
NO1
C1
NC1
-BT
+BT
C
+
-
DS1061-015B
Electronic key
Figure 19 – Devices connection to the bus
LA Bus.line,.data
LB Bus.line,.clock
+ Power.supply.1V,.positive
- Power.supply.1V,.negative
CONTROL PANEL
+
LA
LB
2k7 2k7
-
Figure 20 – Connection with length >100m between 2 devices
L
I
H
G F
Figure 21 – Control panel motherboard
Proximity
reader reader
2k7 2k7
BUS > 100 m
A C
B
1 2 3 A
4 5 6 B
7 8 9 C
X 0 OK D
Keypad
DEVICE
(for ex. keypad)
+
LA
LB
-
E
-V
D
+V
L1
L2
L3
L4
-V
+V
-
SAB
-
S
+SR
-
+SA
SIR
-
L5
-V
L6
- TMP
15