NFS-320/E/C Installation Manual —
P/N 52745:M2 7/1/14
13
System Components
System Overview
2.2.4 Circuit Board Components
The following three figures illustrate the location of the various connections, switches, jumpers and
LEDs on the NFS-320 and its power supply. Figure 2.2 shows wiring connections; Figure 2.3
shows jumpers, LEDs and switches. See Section 3 “Installation” for larger images and more details.
(Larger images are referenced on these drawings.)
TB
13
- SLC
Lo
op
#1
(
supervised, po
wer-
limi
ted)
(F
TB
11
- EIA-4
85 ACS Mode Co
nnection (
sup
ervised)
TB
11
-
EIA-485 T
erminal
M
ode Connection (super
vised)
TB10
-
DC Pow
er
(2
4
V
DC po
wer-
limite
d)
Res
ettab
le
No
n-res
ettab
le
(S
ee Figure
4)
TB12
-
EIA-232 Pr
inte
r Conne
ction (F
TB
12
- EIA-23
2 PC/Ter
mina
l Con
nection (
CRT
)
(F
J1
- N
etwor
k/Ser
vice
Connectio
n (NUP)
(pow
er-limited, super
vised)
J2
-
USB A VeriFire T
ools Conn
ection
J3
- USB B Ver
iF
ire
Tools Connectio
n
TB8
-
NAC#2
All N
A
C
Cir
cu
its: power
-
limited, super
vise
d
TB9
-
NAC#1
TB7
-
NAC#3
TB6
-
NAC#4
Outpu
t Relays -
pow
er-limited
only if connected
to a po
wer-
limite
d
sour
ce.
(See Figur
details.)
TB
5
-
Supe
rvisory Relay
Security Relay
TB
4
-
Alarm Rel
ay
T
roub
le R
elay
J5
- Security T
amper Switch
J6
-
Auxiliar
y T
rouble Input
J7
- KD
M-
R
2
Conne
ction
CPU320-KAPS
-
Figure 2.2 NFS-320 and Power-Supply: Wiring Connections
TB
3
- Batter
y C
onnection
(o
ver
-curre
nt protected, n
on-pow
er-limited)
TB
1
-
A
C
Power C
onnection
(non-
po
wer-
limite
d)
Hot
Neutral
Ea
rt
h
Gr
ound
(+) (
-)
TB
2
- Secondar
y Powe
r Auxiliar
y Outputs
(power
-limited)