Installation guide

6
AXIS 250S Blade - Rack Solution Installation Guide
The I/O Terminal Block
Axis Blade Video Servers connect to an I/O terminal block used for transmitting data over
multi-drop communication lines:
• RS-485 Pan/Tilt devices
• RS-232 Pan/Tilt devices
• External triggering (typically associated with CCTV equipment)
The Axis Blade Video Servers support several Pan/Tilt device drivers that are available
from the Axis Web site at www.axis.com
Connector Pinout
The pinout for the I/O Terminal Block and the signaling details for each pin:
For compatible replacement connectors, contact http://www.phoenixcontact.com, quoting:
MC1.5/14-ST-3.81 (art no 1803691).
For further information, please refer to the Unit Connections section in the AXIS 250S
User’s Manual.
Pin Function Description Pin Function Description
1 RS-232 RI 15 RS-485 - A
(non-inverting)
A half-duplex RS-485 interface for con-
trolling auxiliary equipment, e g. PTZ
devices
2 RS-232 CTS 16 RS-485 - B
(inverting)
3 RS-232 RTS 17 n/a
4 RS-232 DSR 18 GND
5 GND 19 n/a
6 RS-232 DTR 20 n/a
7 RS-232 TXD 21 GND
8 RS-232 RXD 22 Transistor Output 1 With a maximum load of 100mA and
maximum voltage of 24V DC, this output
has an open-collector NPN transistor
with the emitter connected to GND. If it
is to be used with an external relay, a
diode must be connected in parallel with
the load for protection against any volt-
age transients
9 RS-232 CD 23 Digital Input 4 Connect to GND to activate or leave
floating (or unconnected) to deactivate
10 GND 24 GND
11 n/a 25 Digital Input 3 See Digital Input 4 (above)
12 n/a 26 Digital Input 2 See Digital Input 4 (above)
13 n/a 27 GND
14 n/a 28 Digital Input 1 See Digital Input 4 (above)