NOHMI BOSAI CSC004 System Interface Unit (SIU)

Made in Japan
Manufacturer: NOHMI BOSAI
Model: CSC004

Features of CSC004

The SIU is an optional component that connects the System Monitoring Program (SMP) with Fire Alarm Control Panels (FACP) on the network. This setup enables the system to handle communication across 63 FACPs, ensuring real-time control and monitoring.The SIU has two key parts. First, the AC/DC switching power supply converts AC power into 24 VDC for the communication process. Second, the communication part includes a microprocessor, an Arcnet controller, and memory to manage interactions with other FACPs on the network.In addition, the SIU supports the PCA-2707XA FIM or PCA-N3060-FIM2 for fiber optic network connections, giving the system the ability to manage longer distances through fiber optics. Power for these fiber optic components is supplied directly from the SIU.
Connecting the SIU to a personal computer is simple. You only need a dedicated connector cable to link the RS-232C port of the SMP to the SIU.

The SIU’s LEDs provide quick status feedback. The green [+5V] LED shows the communication system is receiving power. The [TXN] and [TXD] LEDs flash to indicate active communication with the SMP and the network. If there are issues with Port A or Port B, the yellow [ATBL] and [BTBL] LEDs will light up.

No.	Item	Specification
1	Rated AC input voltage	110 V/240 VAC (Universal)
2	Maximum electric power consumption	25 VA (120 VAC)/32 VA (240 VAC)
3	Network wiring style	NFPA Styles 4 and 7
4	Maximum no. of nodes	64
5	Max. network length between a node and another node	600 m (for copper/metal cable) 2000 m (50/125), 1700 m (62.5/125) (for PCA-2707XA FIM) 5000 m (9/125) (for PCA-N3060-FIM2)
6	Wiring characteristic impedance	100
7	Maximum wiring DC resistance	72
8	Maximum wiring capacitance	80 µF
9	Operating temperature range	0 to 49 °C (32 to 120 °F)
10	Operating humidity range	0 to 93 % (Non-condensing)
11	Body color	White
12	Dimensions	261 mm (10.28”)(H) x 173 mm (6.81”)(W) x 66.5 mm (2.62”)(D)