Tunstall FlamencoIP Technical Manual page 50

8. Laying the cables
8.5.2 RAN room bus without speech (cable type Is)
Room devices that are used for speech transmission must be wired up with an addi-
tional speech line, i.e. 2x IY(ST)Y 2x2x0.8.
IY(ST)Y 2x2x0.8
IY(ST)Y 2x2x0.8
Fig. 11: RAN room bus with speech
The shield wire of the cable for speech transmission, i.e. the cable containing the
wires "MIC", "LS" and "SCH-B", is connected to the connection point "SCH-B".
Risk of malfunctions in the nurse call system!
 The cable for speech transmission, i.e. the cable containing the wires "MIC",
"LS", and "SCH-B", may be stripped for a max. of 30 mm only, to ensure the pro-
tective screen function. Otherwise, a short circuit situation or crosstalk may oc-
cur.
 The cable shield and the shield wire of the cable containing the wires "RAN",
"+24V-Si" and "0V" are not connected and must be removed in the back box up
to the cable sheath.
 The unused wires must not be interconnected.
48
unused
white
yellow
RAN
+24V-Si
red
black
0V
MIC
white
yellow LS
unused
red
black
SCH-B
max. 30 mm
Flamenco
ComTerminal
IP
- Technical Manual - 00 8813 52, 03/18 (Rev. 1.0)