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DPBF1U & DPGF1U SERIES
OPERATING MANUAL
P O W E R I N G T E C H N O L O G Y
Document Number: DPBF-DPGF-MAN Rev. 5
dpbf_dpgf-man-Rev5-0719.indd
OPERATING MANUAL
DPBF1U & DPGF1U SERIES
DC POWER DISTRIBUTION PANELS
1.0 INTRODUCTION
These distribution panels provide protected power distribution to telecommunication equipment.
They offer fuse or circuit breaker positions on the A and B sides of the panel. The A and B loads
of the distribution panel are totally independent and isolated from each other. There is a green/red
LED for each load to indicate normal operation or an open circuit due to a blown fuse or tripped
circuit breaker.
The panels are only 1.75 inches (1 mounting position) high to minimize rack space and can be mounted
in either a 19- or 23-inch relay rack with corresponding brackets. They can be mounted from the
front of the rack with offsets every ¼-inch from front to back to align with existing rackmounted
equipment.
Figure 1 shows the two series of panels. The first is the DPGF1U Series which has 4 or 6 GMT
fused circuits on both A and B sides. The second is the DPBF1U Series with up to 4 circuit breaker
circuits on both A and B sides.
NO-C-NC
NO-C-NC
B
A
T
R
T
N
1 2 3 4 5 6 FA
1 5 6
B
A
T
R
T
N
1 2 3 4 5 6 FA
1 5 6
DPGF1U: GMT Fuse Distribution Panel
NO-C-NC
NO-C-NC
ON
I
O
OFF
B
AT
RT
N
1 2 3 4
ON
I
O
OFF
ON
I
O
OFF
ON
I
O
OFF
ON
I
O
OFF
B
AT
RT
N
1 2 3 4
ON
I
O
OFF
ON
I
O
OFF
ON
I
O
OFF
DPBF1U: Circuit Breaker Distribution Panel
Figure 1. DPGF1U & DPBF1U Front Views
The panels can be configured for 12, 24 or 48 volts with either positive or negative ground. Because
the A and B sides are independent and isolated, they can be configured separately. For example,
the A side can be 48V positive ground and the B side can be 24V negative ground. The voltage and
polarity of each side must be configured at the factory. All models are reverse polarity protected.
Each bus (A and B) has a green/red visual alarm and one Form C relay alarm contact for connection
to external audible or visual alarms.
