New Revised Standard Version
when you blow a second alarm, the camps on the south side shall set out. An alarm is to be blown whenever they are to set out.

New American Bible
when you sound a second signal, those encamped on the south side shall break camp; when you sound a third signal, those encamped on the west side shall break camp; when you sound a fourth signal, those encamped on the north side shall break camp. Thus shall the signal be sounded for them to break camp.

Douay-Rheims Bible
And at the second sounding and like noise of the trumpet, they who lie on the south side shall take up their tents. And after this manner shall the rest do, when the trumpets shall sound for a march.

And at the second sounding and like noise of the trumpet, they who lie on the south side shall take up their tents. And after this manner shall the rest do, when the trumpets shall sound for a march.

ye blow.

Numbers 2:10-16 In the camp of the sons of Ruben, on the south side, the prince shall be Elisur the son of Sedeur: . . .