Configured for deterministic IONet segment switching in Mark VIeS networks, the GE IS420ESWBH5A (IS420ESWBH5A Ethernet IONet Switch) provides unmanaged physical‑layer forwarding for copper and fiber interfaces. The unit supports 10/100Base‑TX and 100Base‑LX10 media, operating from a 24/28 VDC supply across a -40 to 85 deg C thermal range.
Hardware Specifications
Parameter
Specification
Model
IS420ESWBH5A
Brand
GE
Origin
United States
Weight
Not specified
Dimensions
18.8 cm × 8.6 cm × 5.6 cm
Operating Temp
-40 to 85 deg C
Power Consumption
Not specified
Core Performance Indicators
8 × 10/100Base‑TX copper ports; 2 × 100Base‑LX10 fiber ports; 100 Mbps FX uplink; Phoenix Contact power connector; convection cooling; ATEX/Class 1 Div 2/Zone 2 suitability; compatibility with 802.3/802.3u/802.3x; Cat 5e UTP support; perpendicular‑mount clip 259B2451BVP4
Backplane Bus Communication Velocity Licenses
Within Mark VIeS architectures, the switch aligns with deterministic IONet timing constraints. Although unmanaged, its forwarding paths maintain predictable propagation delays required for synchronous controller‑to‑I/O exchanges. Profinet and EtherNet/IP deterministic behavior is achieved through stable link‑negotiation windows and consistent media‑layer timing. I/O density scaling is supported through fixed copper/fiber port groupings, while firmware flash compatibility resides at the controller level; the switch itself contains no user‑programmable logic.
Frequently Asked Questions
Q: Can the IS420ESWBH5A be hot‑swapped? A: Mechanical replacement is possible only when the power feed is isolated. Removing the Phoenix Contact connector under load may cause transient link drops on IONet segments.
Q: Does the switch impose any restrictions on cable selection? A: Copper ports require Cat 5e UTP with RJ‑45 connectors. Fiber ports use 100Base‑LX10; installers must verify connector cleanliness and avoid tight bend radii.
Q: How does the unit behave in redundant IONet configurations? A: Redundancy timing is governed by controller logic. The switch provides fixed physical‑layer forwarding without internal spanning‑tree or PRP processing.
Field Installation Guidelines
Maintain separation between copper and fiber routing to reduce electromagnetic coupling.
Bond cable shields at a single termination point to avoid ground‑loop formation.
Verify Phoenix Contact power‑connector engagement before energizing the segment.
Ensure convection‑cooling clearance around the enclosure.
Inspect fiber connectors for contamination prior to insertion; avoid excessive mechanical stress on LX10 leads.
