The phrase "a request to send" is correct and usable in written English.
It can be used when you are asking someone to send something, typically in a formal or polite context.
Example: "I am writing to make a request to send the updated documents by the end of the day."
Alternatives: "a plea to send" or "a demand to send".
Pakistan was considering a request to send ground forces.
He complained, for example, that a request to send a dog-handling team to Afghanistan goes through no fewer than five four-star headquarters.
He said the Chinese had not allowed his brother to travel in Tibet or responded to a request to send a fact-finding mission to Tibet.
Canada's former Liberal government refused a request to send troops when the US invaded Iraq in 2003, straining ties between the two neighbours.
Secretary General Kofi Annan gave strong indications on Monday that he would accept a request to send United Nations experts to Iraq, in a move that could help end the stalemate over how to turn over authority to an Iraqi-led government.
He said he wouldn't argue with anyone who accused a Nigerian of being a 419 scammer — referring to the country's notorious connection to advanced fee fraud (if you've ever received an e-mail beginning "I crave your distinguished indulgence" and ending with a request to send your bank account number in return for a large cash transfer, you've come into contact with a 419 scammer).
The agency accepted a Chinese request to send a team of international experts to the country next year to assess staffing and training, he added.
Pentagon planners also considered a White House request to send a hunter team of commandos, small enough to avoid detection, the officer said.
Air strikes alone will not defeat them, but the ground option is receding after Pakistan rebuffed a Saudi request to send troops (see Banyan).
All this has not helped build global support: last week, India rejected an American request to send some 17,000 peacekeeping troops.
In most existing handshaking-based underwater MAC protocols, only an initiating sender can transmit data packets to its intended receiver after a channel reservation through a Request-to-Send (RTS /Clear-to-Send (CTS) handshake.
