TK_S014 – Installation Manual
9
The connections shown are:
• The Power supply connection: it connects the Power Supply device whit other Temaline devices
• The LonWorks connection: to connect the TemaServer with the RTUs
• The Input and Output are used to connect the physical door managed (lock, Door sense, REX and
others)
• The Reader connections: are Wiegand lines that connect RTU-A08 with the third party readers.
Wiring Characteristics
Power supply wire
The RTU is powered at low voltage (12V
DC
) by a battery-operated power supply module (RTU-Qxx). When
determining the correct size for power cables, refer to the table below. (Voltage cable drop max = 0,7V)
Cable Length (m) = 0,7V / (I [A] load x 2 x (R [Ohm/km] /1000))
Type of cable Length (m) in relation to base load
AWG mm
2
Ohm/Km 100
[mA]
200
[mA]
500
[mA]
1 [A] 2 [A] 5 [A]
14 2 8.8 398 199 80 40 20 8
16 1.3 14 250 125 50 25 13 5
18 0.9 21 167 83 33 17 8 3
20 0.6 34 103 51 21 10 5 2
22 0.35 52 67 34 13 7 3 1
Table 1. Length/Capacity of Power Cables (m)
LONWORKS
Data Cables
The LONWORKS
data cable must be twisted-pair.
In a free topology configuration, the total length of the sections must not exceed 500m.
In a bus configuration, the total length of the sections must not exceed 2700m.
In a free topology configuration, activate the 51 ohm terminator by placing the appropriate jumper on the
related TemaServer device:
• For TS AC close the jumper on LonWorks plug-in.
• For TS2 close JP1 on the LonWorks MIP board.
For further details please refer to the related TemaServers Installation guides.
In a bus configuration, place two terminators (with resistance values of 100ohm 1% ½W) at each end of the
bus.
Check that the length of the LONWORKS
data cable corresponds to the norms indicated in Table 2.
Type of cable Length [m] in relation to cable capacity
AWG mm2 Ohm/Km 50nF/Km 100nF/Km 200nF/Km 500nF/Km 1uF/Km
12 3,3 5,7 2676 1892 1338 846 598
14 2 8,8 2153 1523 1077 681 482
16 1,3 14 1707 1207 854 540 382
18 0,9 21 1394 986 697 441 312
20 0,6 34 1096 775 548 346 245
22 0,35 52 886 626 443 280 198
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