Product manual

Installation instructions, Battery power unit
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
27
Power supply unit REX-BAS0063 (BML 351 48)
The PSU is a 48 V power supply that can be screwed to the rear side of the battery cabinet. It can
supply a maximum of 2 modular cabinets. The PSU is provided with battery back-up provision to
charge the back-up batteries. During a mains power failure the battery voltage is supplied to the 2
outputs of the unit. Refer to the ‘Configuration directions’ section in this manual on how many base
stations can be powered using this PSU.
The PSU is provided with an alarm output. The pins of the alarm relay are short-circuit in case no 48
V is supplied to the outputs C and D (see figure
17). If no voltage is present at output C or D because
of an open output fuse (F1 or F2), no alarm is raised.
Fig. 17 Power supply unit
Batteries
The battery power unit must be equipped with 4 batteries (4 times REX-BAS0054 (BKC 851 003)).
The battery is a VR (valve regulated) 12 V battery with a capacity of 15 Ah minimum.
Mains power cord
Two kind of mains power cords are available to connect the mains to the PSU. Mains power cord
REX-CAB9016 (RPM 945 102) are for all European countries except U.K. and Cyprus. For U.K. and
Cyprus mains power cord REX-CAB9018 (RPMNB 101 02) must be used.
6.3 Installation
Fix the PSU to the battery cabinet
1. Remove the cover of the cabinet (see figure 18):
– Remove the screws that secure the cover (1)
– Lift the front cover approximately 10 mm (2)
– Remove the cover by lifting the lower edge towards you (3)
2. Place the battery cabinet in upright position and remove the four screws in the battery rack that
fixes the battery rack to the battery cabinet using a torx 25 screw driver.
NA
BC D
F1 F2
N: 230
V mains input
A:
−48 Vdc output for charging the
batteries
B:
alarm relay output. The contact
closes when no AC power is
supplied to the PSU. Max. contact
ratings: 1A, 60 V A.
C, D:
−48 vdc outputs for feeding the
modular cabinets.
F1, F2: fuses for the C and D outputs.
017