AC and DC Current Load
Chapter 3: Site Preparation
Table 3-7
Typical Power Loads and Heat Dissipation Values - Expansion Cabinet 800 MHz
Configuration (Continued)
Expansion
Cabinet
Consumptions
MTS 800 MHz
Configuration
AC
(W)
Heat
AC
(W)
AC
When
Charg-
ing (W)
Heat AC
When
Charging
(W)
DC
-48 V
(W)
Heat
DC
(W)
Comment
TETRA TX 25 W and TEDS TX 10 W
MTS4 with 1 BR w.
MTCC
405
380
790
455
395
370
High power PA,
fans
MTS4 with 2 BRs w.
MTCC
700
650
1085
740
685
635
High power PA,
fans
MTS4 with 3 BRs w.
MTCC
1130
1055
1890
1215
1105
1030
High power PA,
fans
MTS4 with 4 BRs w.
MTCC
1445
1345
2205
1515
1410
1310
High power PA,
fans
•
All the values in the table are calculated from AC = 230 V
•
Add additional 5% for 110 V
•
Charging is up to 6 A per PSU
AC and DC Current Load
The MTS has a certain power consumption even when the Power Supply Unit
(PSU) is switched off (0.1 A @ -48 VDC, 0.04 A @ 110 VAC, 0.02 A @ 240 VAC).
The switch only disconnects DC outputs and charging currents. In case of
field repair, all PSU connecting cables have to be disconnected.
Backup Battery
The backup battery is normally located near the cabinet(s). The recommended batteries to be used are
a VRLA (Valve Regulated Lead Acid) recombination type, with -48 VDC nominal.
3-20
6802800U74-N September 2009
Содержание DIMETRA MTS 2
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