TLS-IB Site Prep Manual
Connecting Power Wiring to TLS-IB
32
Figure 27. Connecting serial communication wiring to TLS-IB
Connecting Power Wiring to TLS-IB
1. Pull four wires between the power panel and the TLS-IB; three #14 AWG or larger diameter color-coded wires for
AC line (L), AC neutral (N) and chassis ground; and one #12 AWG (4 mm
2
cross-sectional area) green and yellow
wire for barrier ground.
For international applications, console power should come from a dedicated circuit via a fused, switched, neon indi-
cation spur within one metre of the console position. From an independent 24 hour supply at the distribution panel,
run three 2.5 mm
2
(minimum) standard colour coded wires, live, neutral and earth, to the fused spur. Run three simi-
lar wires from the spur to the console location. Run one 4mm
2
wire, colour coded green/yellow, from the earth bus
bar at the distribution panel direct to the console location. Leave at least 1 metre of free cable for connection to the
console.
IMPORTANT! Use an ohmmeter to check the electrical resistance between the console’s metal case and the earthing
ground wire’s connection at the “known good earth ground” (copper rod driven into ground, etc.). It should read less
than 1 ohm.
2. Open the door of the TLS-IB and connect the four power/ground wires as shown in [Figure 28]. Do not connect the
power wires to breaker panel at this time.
WARNING
The TLS-IB contains voltages which can be lethal. It is connected to devices
that must be intrinsically safe.
Connecting power wires to a live circuit can cause electrical shock that may
result in serious injury or death.
1. Turn power Off at the circuit breaker connecting the power supply wires.
2. Attach conduit from the power panel to the TLS-IB's Power Area
knockouts only (1 on top and 2 on bottom, ref. Figure 12 on page 14).
+
PROBE 6
+
PROBE 5
+
PROBE 4
+
PROBE 3
+
PROBE 2
+
PROBE 1
REFER SERVICING TO QUALIFIED
PERSONNEL ONLY.
AVERTISSEMENT
LA SUBSTITUTION DE COMPOSANTS
PEUT COMPROMETTRE LA SECURITE
INTRINSEQUE.
J5
SGL DBL
B
A
WIRING SIDE
G
J4
D1
IFSF
JP3
J7
S1
SERVICE
RAM
tlsn
CLR
N
M
L
C
L
R
R12-001
331470
R12-002
R12 003
L
+
PROBE 8
+
PROBE 7
Serial Comm Wiring
For RS-232 Network:
Connect TX to (B)
Connect RX to (A)
Connect Signal Ground to (G)
JP4
OFF
OFF