6
AXIS 240Q Blade - Rack Solution Installation Guide
The I/O Terminal Block
The AXIS 240Q Blade Video Server connects 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 240Q Blade supports several Pan/Tilt device drivers, which 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 240Q
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
Transistor Output 4
With a maximum load of 100mA and
maximum voltage of 24V DC, this out-
put has an open-collector NPN transis-
tor with the emitter connected to GND.
To use with an external relay, a diode
must be connected in parallel with the
load, for protection against voltage
transients.
4
RS-232
DSR
18
GND
5
GND
19
Transistor Output 3
See Transistor Output 4 above.
6
RS-232
DTR
20
Transistor Output 2
See Transistor Output 4 above.
7
RS-232
TXD
21
GND
8
RS-232
RXD
22
Transistor Output 1
See Transistor Output 4 above.
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.
