Meinberg XHE-Rubidium, Manual, Page: 15 / 22

6.1 Chassis Architecture XHE
The Rubidium XHE
RB
expansion chassis is divided into 84 HP (Horizontal Pitch).
Each rubidium module occupies 36 HP:
RUB-CLOCK 1
Power supply PWR1 6 HP
Connectors PWR1 - PWR2 6 HP
PSU PWR2 6 HP
XHE-REL: 4 HP
Rubidium Clock 1 20 HP
RUB-CLOCK 2
Power supply PWR1 6 HP
Connectors PWR1 - PWR2 6 HP
PSU PWR2 6 HP
XHE-REL: 4 HP
Rubidium Clock 1 20 HP
The XHE housing is always supplied with two back planes, this allows a second Rubidium module to be
retrofitted on-site, at any time.
Please Note:
The power supply for a rubidium module will only be offered with a redundant power-supply configuration. In
case of a second rubidium both modules are equipped with the same combination of power supply units. If the
module for CLOCK 1 is configured with the AC / DC combination, the second module for CLOCK 2 will need
the same power-supply configuration.
RUB-Clock 1 - AC/DC | DC Power Supplies = RUB-Clock 2 - AC/DC | DC Power Supplies
Rubidium
Status PPS _In PPS _Out Alarm
1
3
5
C
L
K
V1
POWER 1
V1/2
POWER 1
POWER 1
V1
POWER 1
V1/2
POWER 1
POWER 1
Rubidium
Status PPS _In PPS _Out Alarm
1
3
5
C
L
K
XHE-REL
CO NO NC
CO NO NC
CO NO NC
A
B
C
XHE-REL
CO NO NC
CO NO NC
CO NO NC
A
B
C
When removing a rubidium module (ensure that the system is disconnected from all power cords), first pull out
the power supplies PWR1 and PWR2. After that you can remove the unit with the main power terminals.
10 Date: 28th July 2020 XHE-Rubidium