1
TECHNICAL SHEETS
Dimensional data
Description
8/2-WIRE interface is a device that can be used for installing mixed video door entry
systems, with common backbones using the digital system (8 WIRES), and risers using
the 2 WIRE system.
It is ideal for very large systems as all the performance advantages of the digital system
can be combined with the installation advantages of the 2 WIRE system (simple wiring
system, intercommunication, no need for local power supply of monitors).
The device must be used together with the 346000 power supply.
In installing a system with local entrance panel, the entrance panel itself may be wired
using both the 2 WIRE, or the 8 WIRE procedure.
Related items
346000 (2 WIRE system power supply)
Technical data
Power supply from SCS BUS: 18 – 27 Vdc
Operating temperature: 5 – 40 °C
SELV device
BACKBONE SIDE (IN-OUT):
- Stand-by absorption: 60 mA
- Max. operating absorption: 145 mA
RISER SIDE (EP-OUT M):
- Stand-by absorption: 25 mA
- Max. operating absorption: 110 mA
Legend
1 - Con gurator socket
2 - 8 WIRE backbone (IN-OUT) connection clamps
3 - 8 WIRE local entrance panel connection clamp
4 - 2 WIRE riser and power supply connection clamp
5 - Powered device ashing (stand by) signalling LED
6 - Local conversation active signalling LED
7 - Conversation with backbone active signalling LED
NOTE: the three ashing LEDs indicate a device con guration error.
3461508/2-WIRE interface
BT00171-b-UK
6 DIN modules
PE
IN
1234
5678
1234
5678
1234
5678
BUS PI BUS TK
PS 21
OUT M
OUT
M1 N1 M2 N2
JMP
OUT M
OUTIN
PE
2
7
6
1
5
3 4
2
BT00171-b-UK
Conguration
The device must be physically congured to set the operating mode:
MODE A: It is possible to generate up to 40 risers, each with up to 100 handsets (devices).
The total number of handsets installed on the riser column must also include any
handsets and video handsets connected in parallel. With each extra device added in
parallel to the base device, the total number of calls or apartments decreases by one. It
is recommended that the risers in M1 are numbered starting with 1.
The congurators must only be connected to the M1 position. On the generated riser,
handsets (max. 100) must be congured (in N) from 1 to 99.
MODE B: it is possible to generate up to 100 risers, with the possibility of installing on
each of them a number of handset based on the value of the congurator connected to
M1 and N1. However, the total number of calls in the system is 4000.
The congurators to be used are M1, N1, M2, N2; for each riser these will dene the
address of the rst and the last video handset of the riser.
In this mode M1 must be the same as M2, and therefore up to 100 call address Handsets
(N1 and N2) may be allocated to each riser.
NOTE: if only one handset can be installed on a riser (M1=M2 and N1=N2), the
handset shall always be congured with N=1 due to the fact that the call on the 2 WIRE
line (in this conguration) becomes general.
M1 = number of the riser
It allocates to the handsets the number of the riser they belong to
N1 = Call number
Mode A: MUST not be congured.
Mode B: it allocates the initial number of the handsets installed on the riser.
M2 = number of the riser
Mode A: MUST not be congured.
Mode B: It allocates to the handsets the number of the riser they belong to (it must be
equal to M1)
N2 = Call number
Mode A: MUST not be congured.
Mode B: it allocates the nal number of the handsets installed on the riser
J = Selection of the secondary riser entrance panel
It is possible to install a riser EP belonging to the 2 WIRE system range or a riser EP
belonging to the digital system range However, both types of EPs cannot be installed
at the same time.
Congurator J connected = 2 WIRE system EP
Congurator J disconnected = digital system EP (6-8 wires)
PE
IN
1234
5678
1234
5678
1234
5678
BUS PI BUS TK
PS 21
OUT M
OUT
M1 N1 M2 N2
JMP
M1 N1 M2 N2
J
J
M
P
M1 N1 M2 N2
2
1
9
2
1
9
M1 N1 M2 N2
1
3 1 3
Handsets The connected handset must
from 103 to 103
be congured with N =1
Handsets The connected handset must
from 219 to 219
be congured with N =1
M1 N1 M2 N2
J
J
M
P
346150
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