links, these headers enable selection of the following:
Earth (ground) fault monitoring, there can only be one
Earth fault monitoring circuit active at the fire panel.
Output CON3.2 +27V may be reset (turned off) under
CIE control.
Unit may be configured for single unit or dual unit operation, link selects between primary (master) and auxiliary (slave). There can only be one primary and one auxiliary connected together, no other combinations are
permitted. PSU830 cannot be mixed with any other
PSU.

Refer to Table 3, 4 and Figs. 2, 3, 4 for details of terminal
block CON3, header and wiring configurations.

Fig. 2: PSU830 connectors, terminals and links
1 – Battery fuse
2 – Link 3
3 – 27V output fuses
4 – Diagnostic LEDs
5 – Link 4
6 – Battery temperature compensation cable and thermistor
7 – CON6 to CON6 of other PSU830 (dual PSU830 application)
8 – CON1 to FIM 802 PL2 or PTM800 if second PSU830
9 – Link 2
10 –LINK SETTINGS PRIMARY PSU830
LINK 2 (LK2, RESET_ - DIS (disable)
LINK 3 (LK3, E-FLT) - EN (enable)
LINK 4 (LK4) - MTR (master)
11 –LINK SETTINGS AUXILIARY PSU830
LINK 2 (LK2, RESET) - DIS (disable)
LINK 3 (LK3, E-FLT) - DIS (disable)
LINK 4 (LK4) - SLV (slave)
TYPICAL WIRING ARRANGEMENTS OF PSU830

Fig. 3: PSU830 typical wiring of primary power supply
1 – AC power input
2 – Primary PSU830
3 – DC common
4 – +27.3V DC (reset)
5 – +27.3V DC (standard)
6 – 38Ah 12 volt DC batteries
7 – Fuse-lead
8 – To FIM802

Fig. 4: Wiring for primary and auxiliary PSU830
1 – AC power input
2 – Auxiliary PSU830
3 – Primary PSU830
4 – DC common
5 – +27.3V DC (reset)
6 – +27.3V DC (standard)
7 – To PTM800
8 – To FIM802
9 – 38Ah 12 volt DC batteries
10 –Fuse-lead
OPTIONS
FB800
The fuseboard FB800 provides 8 fused outputs, it is connected to one of the 27V outputs of the PSU830. On the
cover of the PSU830 there are four M3 tapped holes to
accept the male/female threaded pillars supplied with the
FB800.
PTM800
The PTM800 provides screw terminals for 40V, 27V and
5V supplies, necessary when second PSU830 is used to
supply loop power to XLM800s. The 5V, 27V and 40V outputs are not fuse protected. The PTM800 is connected to
the PSU830 via 12 way cable assembly. It is mounted by
four plastic pillars and two 5/8 inch 4/40 UNC screws supplied with the PTM800. The PTM800 may be mounted
on top or on the left hand side of the PSU830.
SERVICE REPLACEMENT
PSU830 is a NOT a form fit replacement for PSB800,
PSM800 or PSB820, refer to publication 120.415.990
for service replacement instructions.
PSU830 should not be used with 10Ah battery sets due to
possibility of overcharging.
ORDERING INFORMATION
PSU830 Power Supply and Battery Charger:
557.202.210
PTM800 Power Terminal Module: 557.201.232
PSU830K Power Expansion Kit: 557.202.044
RELATED DOCUMENTATION
120.415.990 PSU830 Power supply and battery charger
installation and service replacement instructions.
120.415.984 Installation guide - PSU830 Dual Power
Supply kit.
CON1 CONNECTION
Mini blade fuses Farnell RS
2A: 994-3811 219-3536
7.5A: 994-3854 220-0892