LANNET Backup Power Supplies (Historical documentation)

1. T
ime is a valuable resource in
today’s 24-hour corporate business
environment. In the round-the-
clock world of deadlines, the competitive
organization needs a guaranteed power
supply for mission-critical networks.
LANNET recognizes and meets this
need with BUPS Backup Power Supplies.
The BUPS series of add-on power supplies
protect LANswitch Plus hubs against power
failure. Each hub model has a custom
backup power supply. The BUPS-36/01 fits
the LET-36 hub, the LPS-225 protects the
LET-20 hub and the BUPS-10 provides
backup for the LET-10 hub.
Automatic switchover to the backup
power unit and load-sharing between the
integral and backup units provide an
exceptionally high level of hub reliability,
ensuring smooth operation of the fault-
tolerant network.
NETWORKS DON’T MISS A BEAT
The BUPS units provide seamless,
continuous operation for LANswitch Plus
hubs. In case of failure or power fault, the
hub’s original integral supply takes over
automatically. The external power supply
can then be removed and repaired without
disrupting network operation.
LOAD SHARING
BUPS units are designed to function as
primary or secondary power sources, taking
on all or part of the hub’s day-to-day load.
Load sharing between two parallel power
supplies assures that the backup power
supply is functional when needed and
switchover is seamless, increasing overall
network reliability.
Dual Power Cord (DP) models and
optional Clip-On Filter allow connection to
two separate power sources.
STR ENGTHENING
NETWORK
RELIABILITY
LANNET Backup
Power Supply units
provide automatic,
real-time recovery
with a Dual Power
option for separate
power sources.
LANNET Backup
Power Supplies
FAULT-TOLERANCE FOR
MISSION-CRITICAL NETWORKS
LANNET backup power supplies are a key element in the design and
implementation of fault-tolerant networks. These customized units keep LANNET LANswitch
Plus™ hubs up and running by providing continuous power, automatic switchover, and load-
sharing.

2. LANNET
Backup Power
Supplies for
LANswitch
Plus Hubs
LANNET, the LANNET logo, Cellenium, LANswitch, Montage, MultiNet, SMON, TerrainMaster, and Visage are trademarks, and in some jurisdictions may be registered
trademarks, of LANNET Ltd., Madge Networks or its affiliated companies. Other trademarks appearing in this document are the property of their respective owners.
© Copyright 1998 LANNET. All Rights Reserved. 143009 Rev. 0 1/98
LOAD SHARING WITH BUPS-36 AND LPS-225
The BUPS-36 and LPS-225 use load sharing between two parallel power supplies to provide
maximum network reliability. Normal operating load is divided between the two units, so if
one power supply fails, the load is automatically transferred to the other power supply
without affecting the hub or the network. The BUPS-36 has an optional Clip-On Filter that
allows connection of the BUPS-36 to two separate power outlets. The LPS-225 has integral
sockets for these dual source connections.
BUPS-LET-10 FOR SEAMLESS SWITCHOVER
When the BUPS-LET-10 unit is installed on an LET-10 hub, it operates as the main power
supply. Switchover to the internal power supply is automatically activated upon failure of the
hub’s own power supply. The BUPS unit can then be removed and repaired without
disrupting network operation. A Dual Power Cord (DP) model is available for the BUPS-10,
allowing connection to two different power sources for additional network protection.
CUSTOMER SUPPORT WITHOUT LIMITS
LANswitch Plus Backup Power Supplies are backed by LANNET’s world-renowned
expertise in networking. Each BUPS unit come with a one-year hardware warranty.
PRODUCT SPECIFICATIONS
BUPS-36 LPS-225 BUPS-10
POWER REQUIREMENTS
Output voltage: 5 V 5 V / 12 V 5 V
Output current: 50.0 A max 40.0 A max 25.0 A max
Output power: 250 W 225 W 125 W
Input voltage: 85-132 VAC (115V) 85-132 VAC (115V) 100-120 VAC (115V)
170-265 VAC (230V) 170-265 VAC (230V) 220-230 VAC (230V)
47 ~ 63 Hz 36-72 VDC (-48 V) 47 ~ 63 Hz
47 ~ 63 Hz
Input current: 5.0 A @ 100 V 5.0 A @ 100 V 30.0 A @ 115 V
2.5 A @ 200 V 2.8 A @ 200 V 30 A @ 230 V
6.7 A @ 48 V
Inrush current: 25 A @ 100 V 50 A @ 200 V
50 A @ 200 40 A @ -48 V
Overload All circuits are protected against overload and short-circuits through shutdown of control
Protection circuit. Recovery is automatic after removal of fault.
ENVIRONMENTAL
Operating Temperature: 0-40 degrees Celsius
Humidity: 5% to 95%, non-condensing
EMI: Per FCC Part 15, subpart J, class A; VFG 243/1991, class B; EN-55022, class B, CE
PHYSICAL CHARACTERISTICS
Dimensions in mm (h,w,d): 115 x 397 x 146 253 x 112 x 242.7 120 x 437 x 65
Weight: 4.3 kg 1.71 kg 3.0 kg (with fan)
1.9 kg (no fan)
ORDERING INFORMATION
890119 BUPS-36/01 890126 LPS-225/230 890117 BUPS-10
for 115 VAC for 230 VAC for 115 VAC
890120 BUPS-36/01 890127 LPS-225/115 890118 BUPS-10
for 230 VAC for 115 VAC for 230 VAC
890131 Clip-on filter 890128 LPS-225/48 890121 BUPS-10/DP with
for BUPS-36/01 for-48 VDC dual power cord for 115 VAC
890122 BUPS-10/DP with
dual power cord for 230 VAC
Specifications subject to change without notice.
Israel
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Building 3
Tel-Aviv 61131
Israel
Tel +972 3 645 8458
Fax +972 3 648 7146
http://www.lannet.com
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Los Gatos, CA 95032
USA
Tel 1-888-ETHERNET
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Fax (408) 871-4100
http://www.lannet.com
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