Description Of Parts - Comelit FT SB2 17 Hoja Técnica

WARNING
• Install the equipment by carefully following the instructions given by the manufacturer and in compliance with the legislation in force.
• All the equipment must only be used for the purpose it was designed for. Comelit Group S.p.A. does not assume responsibility for improper
use of the appliances, for modifications made by others for any reason or purpose, or for non-original accessories and materials.
• All products comply with the requirements of the 2006/95/CE directives (which replace the 73/23/CEE directives and subsequent amendments), as certified by
the CE mark on the products.
• Do not route the riser wires in proximity to power supply cables (230/400V).
RISER SHUNT MODULE ART. 1414
Art. 1414 allows the branching of second riser from the BUS line leaving the mixer. It
can also act as line protection (this function is deactivated by default). The device can
be used in systems with Simplebus 2 and Simplebus Color wiring and does not require
any additional power supply, in being fed by the 2-wire bus. Up to 100 users can be
connected for each mixer Art. 4888, Art. 4888C irrespective of the number of Art. 1414
used. The maximum operating distances are unchanged with respect to those given in
the technical manuals MT/SBC/01, MT/SB2/01, FT/SBC/04 and FT/SB2/15. In case of
use of the line protection function, jumper JP3 must be arranged according to the
settings given in Table 1.
Fig. 1

DESCRIPTION OF PARTS

1 JP2 jumper to reinstate the line after a short circuit.
2 JP3 jumper for setting of connection distances. For line protection
function only.
3 DL1 isolated line signalling LED (protection active).
4 LM LM branch riser output terminals.
5 L IN L IN BUS line input.
L OUT L OUT BUS line output.
6 JP1 JP4 jumper for activating/deactivating line protection function.
Comelit cable Art. 4577
cross section 1 mm 2 (Ø 1.2 mm AWG
17)
Table 1
200 m
D
Max. distance between Mixer
(650 feet)
and furthest internal unit.
Pos A
Position of jumper JP3
Double-wire cable Braided and shielded cable
cross section 1.5 mm 2 (Ø 1.4 mm cross section 1 mm
AWG 15) 17)
120 m
150 m
(390 feet)
(495 feet)
Pos A Pos A
LINE PROTECTION FUNCTION
Jumpers JP1 and JP4 must be removed in order to activate this function.
The line protection function allows the branch line to be automatically isolated
in case of short circuit. If this occurs, LED DL1 lights up to signal the fault (Fig.
2A). To reinstate the line, after eliminating the problem it is necessary to move
jumper JP2 to position B until the LED (Fig. 2B) goes off, then move the
jumper to position A (Fig. 2C).
Fig. 2A
For correct operation, use this product only in conjunction with the
following mixers having the same or higher revision index to that
indicated, Art. 4888 (VER. 003), Art. 4888C (VER. 004), Art. 4888CU
(VER. 001).
The revision index of the mixers can be found on the inside of the door
(Fig. 3).
Fig. 3
JUMPER JP3 SETTING FOR LINE PROTECTION FUNCTION
Depending on the type of cable used and the distance between the furthest riser branch
internal unit and the mixer, jumper JP3 must be arranged according to the settings
given in Table 1.
For all other distances refer to MT/SBC/01, MT/SB2/01, FT/SBC/04 and FT/SB2/15.
Twisted telephone pair
2 (Ø 1.2 mm AWG cross section 0.28 mm 2 (Ø 0.6 mm
AWG 23)
70 m 100 m
(225 feet) (325 feet)
Pos A Pos B
FT SB2 17
Fig. 2B Fig. 2C
UTP5 cable cat. 5 Double-wire cable
cross section 0.2 mm 2 (Ø 0.5 mm cross section 0.5 mm
AWG 24) AWG 20)
50 m 80 m 80 m
(160 feet) (260 feet) (260 feet)
Pos A Pos B Pos A
*Supplied with Art. 1414
3 FT SB2 17
2 (Ø 0.8 mm
120 m
(390 feet)
Pos B