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Introduction
3
ERn-NET 7180A1400 ERn Ethernet Switch
Module
The ERn-NET module provides four ports of 802.3af
compliant Power over Ethernet (PoE) and one port for the P-
ACP.
• Not compatible with a rack-mount ERn enclosure.
• Not compatible with ERn4 230 VAC enclosures.
UBPO
7180A1411 Unison Battery Pack
Option Kit
The UBPO provides back-up power during power outages for
the P-ACP for up to 90 minutes for an ERn enclosure with
one P-ACP or up to 45 minutes for an ERn4 with two P-ACPs
installed.
• Not compatible with a rack-mount ERn enclosure.
URTO
7180A1410 Unison Ride Thru
Option Kit
The URTO kit provides power for one P-ACP in the host
enclosure for a limited time (minimum of 12 seconds) during
brief power outages or drop outs.
• If installed in an ERn4 enclosure, one URTO is required per
installed P-ACP.
ERn-BM
7180A1402 Blank Module
The ERn-BM is required for any empty module space in the
ERn enclosure.
• Installs into the accessory option module slot of an ERn
enclosure.
ERn-RPS
7180A1401 ERn Redundant
Power Supply
The ERn-RPS provides an additional rack power supply that
powers the ERn enclosure if the primary rack power supply is
removed or fails.
• Tool-free installation into the accessory option slot of an
ERn enclosure.
• Not supported in ERn4 230 VAC enclosures. The
ERn4 230 VAC enclosure requires two rack power supplies
as standard.
Model
Part
Number
Description
Notes