1997 Radionics All rights reserved
The Radionics logo is a registered trademark of Radionics,
1800 Abbott Street, Salinas, CA 93901, USA
34377B 04/97
D9024/D10024
Networking Guide
Page 4 of 18
A. Network Installation
All panels must be D9024 or D10024 Fire Alarm Control Panels. The network wiring is supervised. A
fault in the network wiring results in a warning message. In a fault condition on the network wiring each
panel will operate as a stand-alone unit.
Note: In a shared zone network, notification appliance peripherals associated with a specific zone
can be attached to any panel on the system.
Warning: Notification appliances connected to one panel that are associated with detection devices
on other panels will not activate in a network wiring fault condition.
A.1. Serial Port Assignment and Function
Serial network data communications take place using D9051 RS 485 Bus Modules attached to Serial
Port C on the Panel Control Module.
+
LOOP
-
5
E
+ -
+ - LOOP
4
5
+
- LOOP
E
+
-
4
LOOP
+
-
LOOP
5
LOOP
+
E
+
-
4
CPU2
CPU1
Master Panel
EOL Resistor
Network connections through D9051 RS485 Modules attached to Port C
and shown mounted above D9067 Polling Circuit Modules
EOL Resistor
Figure 1: D9051 Network Connections
A.2. System Installations
The panels are wired in series to an NFPA Class B, Style 3.5 signaling line circuit on the appropriate
RS 485 bus. The RS 485 terminals on the D9051 Module are polarity sensitive. The channels are
marked
A
and
B
, and data cables should be connected
A
to
A
and
B
to
B
. Cross-wiring between
channels will result in corrupted data but will not damage equipment.
Use shielded twisted pair wiring such as the Data Grade Cable D293, Beldon 8670 two-core twisted
pair, or non-shielded 18 gauge cable from Atlas, Guardian Sound & Security, or their equals. To
avoid data corruption, route cables so that they do not run next to other cables.
The total length of the data cables between the two end panels must not exceed 3,935 ft. per
channel.
B. Shared Zone Network
This system is usually an installation in a single site or building. Multiple panels are networked together
using common zones. This configuration can have up to 99 zones with 2,520 addressable points
. See
Table 1.
In the Shared Zone Network up to four D9024 and/or D10024 panels are networked together with one
panel designated to act as the Master.
