The phrase "a switchboard of" is correct and usable in written English.
It can be used to describe a central point of communication or coordination, often in a metaphorical sense.
Example: "The organization serves as a switchboard of information, connecting various departments and stakeholders."
Alternatives: "a hub of" or "a center of".
"Lehman Brothers was a sort of a switchboard for the industry," says Peter Kruse of Vestas, the world's biggest wind-turbine manufacturer, "and they didn't pick up the phone any more".
The anterior cingulate appears to serve as a switchboard for connecting the areas of the brain that are crucial to memory, attention, judgment and higher-order reasoning.
The central couple of "Love Affair" echoes that of "Man Is Not a Bird": a middle-aged technocrat (here, a Muslim expert in rat extermination) falls hard for a radiantly sexual blonde (a switchboard operator of Hungarian extraction).
Learning in such a switchboard consists of strengthening and weakening the connections between input relays and output units.
They are also the viewer's stand-ins, fulfilling the fantasy of a life of passive control over a vast switchboard of political consequences, and the two-headed dragon of the fan base.
The lines about the Holy Land being zoned for religion (by mysterious agents) ring slightly false, in part because Amichai's personal religious zone — a veritable switchboard of complaint — is so lit up with his own blasphemous electricity.
But the "Field Dances" serve a critical function in Mr. Wilson's scheme, grouped in his thematic structure with the penultimate scene inside a spaceship, where all the horizontals, verticals and diagonals of the whole opera come together in a heavenly switchboard of flashing lights.
But fresh out of college with a teaching degree, she took a job with AT&T as a switchboard operator because of the salary.
Although its often compared with banks, Visa operates more like a switchboard, connecting millions of disparate players through its network.
