Securing SSH: How to enable FAIL_DELAY?

[Ralph Katz <ralph.katz@rcn.com>]

In trying to further tighten-up SSH, I'd like to enable FAIL_DELAY  that 
I see in /etc/login.defs but has no effect in ssh.  I'm running ssh 
3.8.1p1-8 and have already disabled RootLogin and enabled MaxStartups.

From /etc/login.defs:
# Delay in seconds before being allowed another attempt after a login 
failure
FAIL_DELAY              5

I see nothing like it in /etc/ssh/sshd_config.

How can FAIL_DELAY be enabled for ssh?

Thanks.