3HE11351AA
7750 SR IOM4-e-HS (High Scale) Baseboard
A high-scale Input/Output Module baseboard for the Nokia 7750 SR platform. Accepts up to two MDA-e daughter cards and delivers full service-routing functionality with hierarchical policing and full queuing across IPv4 and IPv6 services — the module operators reach for when a line card needs to scale past standard IOM limits.
What the board handles on-slot
Four functional zones of the IOM4-e-HS baseboard — color-coded to match the block diagram above.
Full Service Routing
Complete IPv4 and IPv6 routing services on-board, positioning the module for VPRN and other service-routing roles rather than pass-through forwarding only.
Full Queuing & Hierarchical Policing
Hardware-level queuing with hierarchical policing, giving granular QoS control across subscriber and service tiers under load.
2× MDA-e Slots
Accepts up to two MDA-e daughter cards, letting the baseboard scale interface density and media type per deployment.
VPRN Upgrade Path
Available upgrade licenses, including VPRN, extend the module’s routing scope without a hardware swap.
Datasheet
Confirmed attributes below come from Nokia part-number documentation. Fields marked “on request” vary by revision/vendor stock and are confirmed at quote time.
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