Topic: How many requests in a second totally should turn out at usage JMeter in mode Di

Means JMeter, installed by 4 machines (1 master + 3 slave), we want to imitate loading on the server (see the circuit).
The test plan (jmx) contains (the screenshot) see:
- Thread Group: in the field "Number of thread" it is set 400
-- HTTP Request: it is included in Thread Group
--- Throughput Shaping Timer: it is included in HTTP Request, in its fields Start RPS and End RPS indicated value 1000
Whether truly I understand, what as a result on the server from 1200 users (400 x 3 slave) with the general rate from all users total loading will be submitted to 1000 requests/sek?