Nice Oview Instructions And Warnings For Installation And Use page 6

3
OVIEW CONNECTION
TO A DEVICE
Oview can be connected to a device in two ways:
• random connection: this enables use of Oview as a "portable" programming
unit. For this connection, the cable supplied (2 m) can be used, connecting it to
the socket on Oview (fig. 4) and the "BusT4" socket on the control unit of the
device to be programmed (fig. 5 - To access this socket, refer to the device
instruction manual.
• permanent connection: this enables use of Oview as a "fixed" control and
programming unit. For this connection, the length of the cable supplied (2 m) is
probably not sufficient. Therefore an extension lead should be used, or a new
cable of sufficient length with the following characteristics:
- type of connector to be used: RJ45 6/4 plug (body 6 with 4 contacts); con-
nectors normally used in telephone systems.
- types of cables admissible:
flat telephone cable with 4 wires;
tamper-proof cable with wires (4 x 0,22 mm);
UTP cable category 2, with 4 wires (if the cable has more these must be
eliminated);
STP cable category 5, with 4 wires (if the cable has more these must be elim-
inated) with shielding.
- maximum cable length: refer to the lengths specified in Table 1.
Table 1 – Maximum cable length
Flat telephone cable
Tamper-proof cable
UTP Cable category 2
STP Cable category 5
5 – English
Oview Oview +
Bluetooth
®
300 m 250 m
300 m 300 m
500 m 500 m
700 m 700 m
• The maximum cable lengths are calculated for use in environments with "Civil" type elec-
tromagnetic emission levels. For increased reliability of data transmission on long cables,
STP type cables, category 5, are recommended, with connection of the cable shielding
to earth as follows:
– if the devices are connected "in cascade" (or "chain"), connect the shielding of the
device positioned at one of the ends of the chain;
– if the devices are connected "in star" mode, connect the shielding either of one device
only or at the centre of the star.
• In the case of a network of devices, the total cable length must be calculated as follows:
– if the devices are connected "in cascade" (or "chain"), the maximum cable length must
be calculated between the two devices at the ends of the chain.
– if the devices are connected "in star" mode, the maximum cable length must be calcu-
lated by adding the two longest sections plus the total of the half the lengths of the oth-
er sections.
In general, for the connection of several devices in a network, special "T" sockets can be
used, usually known as "splitters", as commonly used in telephone systems. The type of
splitter used is model RJ45 6/4 (body 6 with 4 contacts).
• To facilitate crimping of the RJ45 connector at the two ends of the cable, the internal
wires of the selected cable should be "flexible (with strands)" and therefore not rigid
types.
After selecting the type of cable used for connecting Oview to a device, pro-
ceed as follows:
01. Before starting installation, ensure that there is all equipment and materials
required for the work concerned. Also ensure that all items are in good
condition and comply with local safety standards.
02. Establishing the position for Oview installation.
03. Perform all work required for laying hoses or protection ducting for the elec-
tric cables. Note – The hoses or ducting serve to protect electrical cables
and prevent accidental damage in the event of impact.
04. At this point, after routing the cable in the protection ducting, if using a
cable without connectors, assemble a connector on each end of the
Oview +
cable, taking care to use the same sequence of wires on both connec-
GSM
®
tors (fig. 3).
150 m
05. Then connect the cable to the socket on Oview (fig. 4) and to the "BusT4"
250 m
socket on the control unit of the device to be controlled (fig. 5 - To access
this socket, refer to the device instruction manual.
400 m
Note – For more information on the procedures dealt with in this chapter, refer
400 m
to the manual "NiceOpera System Book".
General notes to Table 1: