Siemens S7-300 Installation And Operating Manual page 316

Dimensional drawings
B.1 Signal Module
Dimensional drawing of a signal module with active bus module
The dimensional drawing (side view) below shows a signal module with active bus module
for "hot-swap" functionality, the S7-300 module, and the Ex partition. These dimensions
apply to all signal modules on the active backplane bus.
①
②
③
④
Figure B-3
316
1 2
Mounting rail with "insertion and removal" fixture
Active bus module
S7-300 module
Ex partition
Dimensional drawing of a signal module with active bus module
3 4
Installation and Operating Manual, 01/2010, A5E00085586-10
Fail-safe signal modules