Nca-2 Board Layout - Honeywell NOTIFIER NCA-2 Instruction Manual

Overview

2.4 NCA-2 Board Layout

Figure 2.5 shows NCA-2 circuit board layout; descriptions of the components follow in the next sections.
Note: Relay circuits are power-limited (Class 2)
only if connected to a power-limited signal source.
Relays are rated for 2A@30VDC. See page 26.
TB1 SECUR/ALARM Relay
TB2 SUPV/ALARM Relay
TB3 Trouble Relay
TB4 Alarm Relay
J13 Power connections
(non-power-limited).
See page 29.
TB6 - Accessory power.
See page 29.
16
USB
Future Use
SW1 Security
SW2 Supervisory
J6 Security switch connection
J5 Trouble bus connection
No Connection
LED status
indicator, factory
use only. Refer to
page 36 for
keypad indicators.
Figure 2.5 NCA-2 Board Layout
USB VeriFire Tools connection
TB7 ACS (power-limited/Class 2, supervised)
TB9 RDP pins: LCD-160 or LCD-80
(supervised)
TB9 TOut pins: LCD-80 return
TB5, left side. Printer (isolated)
TB5, CTX/CRX Keltron
printer supervision
(TB5, CTX & REF, No
connection)
Lithium battery for backup of on-
board memory (See page 23)
J9 Keypad Connection
NCA-2 Manual — P/N 52482:M5 03/20/2019
NCA-2 Board Layout
J1, Network
Connection
(NUP),
Cable P/N
75556
J2 LCD
connection
J4 Backlight
connection