Add drawing of Hammond 1554E box

This is the waterproof box being considered for the smaller
telefiretwo project.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/datasheets/hammond/1554E.pdf b/datasheets/hammond/1554E.pdf
new file mode 100644 (file)
index 0000000..5e1cef7
Binary files /dev/null and b/datasheets/hammond/1554E.pdf differ