User's Manual
76 Document Number: 0100SM1401 Issue: 12-16
Physical Dimensions
Hot Standby is configured using 2 x QB full duplex radios + 1 x Hot Standby Controller (19 in. 1 RU each) for a total of 19 in.
(483 mm) 3 RU rack mount.
Without mounting brackets, D:424 x H:133.3 x W:436.5 mm (D:16.7 x H:5.25 x W:17.18 in.)
Part F – Quick Reference Guide
Power Supply Requirements
Operating Voltage: 11...30 Vdc (Dual Input)
Input Power (Rx typical): 35 Watts
Input Power (Tx typical): (See table below)
In high ambient temperature situations, the internal fans may operate, resulting in
an increase of input power of up to 56 Watts [x2 QBs].
Typical receive/standby input power is 35 Watts. The input power will vary in transmit
mode according to RF output power level.
Each QB within the hot standby arrangement is supplied with a lock-in mating DC
power connector which should be installed with the locking screws done up tightly
(0.5 - 0.6 Nm / 4.42 - 5.31 ftin ). Replacement parts available from Schneider
Electric, part number TBUMPWR-PLUG-QB.
The radios are designed to limit damage if the voltage exceeds the operating voltage or if reverse polarity is applied. Each QB has a
field-replaceable internal fuse with a 12 Amp rating. Replacement fuses available from Schneider Electric, part number
TBUMPWR-FUSE-QB.
Tx Power (dBm)
Typical Input
Power (Watts)
QH150 QH450
30 48 55
37 59 67
40 68 80