B-Line Eaton series open racks, Universal spacing, Steel, Telco gray powder coat finish, 12-24 panel mounting holes, 45 mounting spaces, Top channel

Yes. The Eaton B-Line SB5858084UTG open frame rack is built as a Seismic Zone 4 network bay closed duct rack, so it is the version to specify where local code or the structural engineer calls for Zone 4 anchorage. It is also UL Listed. Seismic anchoring still has to be done per the engineer's detail on your site.

45 mounting spaces on an 84 inch tall frame. That is usable panel height for switches, patch panels and rack-mount UPS gear, and it is the standard full-height telco rack size, so equipment specified in RU will drop straight in.

The rails are tapped with 12-24 panel mounting holes, not square cage-nut holes. Your equipment and panels have to be fastened with 12-24 rack screws, which are ordered separately from the rack itself.

The rails use Universal spacing, which is the standard EIA pattern for 19 inch equipment, so 19 inch patch panels, switches and shelves line up on it. Fasteners need to be 12-24 to match the tapped rails.

Plan on a footprint 23 inches wide and 84 inches deep as listed, with an overall height of 84 inches. Add your own front and rear service clearance on top of that for cable dressing and equipment access.

An open frame rack gives you access from all four sides and the easiest cable management, which is why it is the normal choice in a locked telecom room or MDF. If the gear sits in a public corridor, a shared tenant space or a dusty environment, you want a lockable enclosed cabinet instead, because an open frame offers no physical security or dust protection.

Yes, it is the top channel style, which gives you the top member to tie overhead cable runway or ladder rack into as part of a network bay lineup.

Telco gray powder coat over steel, which is the standard color for network bay racks, so it lines up visually with existing telco gray frames and ladder rack in the same room.