Potter PFC-9000 Series User Manual
Page 27
27
PFC-9000 • 5403535 • REV G • 9/08
ZA-9008 Conventional Zone Wire Terminations
NOTE : MAXIMUM LOOP RESISTANCE SHOULD NOT EXCEED 100 OHMS
4-WIRE Smoke Wiring:
The maximum allowable current is 0.2 Amperes. The maximum allowed Voltage Drop is 1 Volt.
Volt drop: Ed = I
t
.
R
1
Ed = starting voltage, I
t
= Total current, R
1
= Resistance
- All jumpers are shipped installed over only 1 pin. If a class A wiring is chosen, the jumper for
the corresponding circuit must be removed over both pins.
- If this is the last circuit adder card installed, move JW5 over both pins.
Note: All devices must be either wired Class A or Class B. The combination of Class A and B wiring is for demonstration purposes only.
Field Wiring Terminals
TYPICAL CLASS B WIRING WITH
END OF LINE RESISTOR
3.9k
EOLR
TYPICAL CLASS A WIRING.
NOTE: EOLR IS NOT USED
FOR CLASS A WIRING.
DWG# PFC-9000-38
INI #1
INI #2
INI #3
INI #4
INI #5
INI #6
INI #7
INI #8
Ω
E
Z
I
S
E
R
I
W
)
E
G
U
A
G
(
N
U
R
G
N
I
R
I
W
M
U
M
I
X
A
M
)
R
L
E
(
E
C
I
V
E
D
T
S
A
L
O
T
)
G
W
A
(
T
E
E
F
S
R
E
T
E
M
T
F
0
0
0
,
1
R
E
P
S
M
H
O
2
2
0
9
9
2
0
1
9
0
.
6
1
0
2
0
6
7
4
0
5
4
1
0
.
0
1
8
1
0
6
5
7
0
0
3
2
4
.
6
6
1
0
0
0
2
1
0
0
6
3
0
.
4
4
1
0
0
0
9
1
0
0
8
5
5
.
2
2
1
0
0
4
0
3
0
0
2
9
6
.
1