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AXIS 241Q/S 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:
Pin
Function
1
RS-232
2
RS-232
3
RS-232
4
RS-232
5
GND
6
RS-232
7
RS-232
8
RS-232
9
RS-232
10
GND
11
n/a
12
n/a
13
n/a
14
n/a
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 241Q/S
User's Manual.
Description
Pin
RI
15
CTS
16
RTS
17
DSR
18
19
DTR
20
TXD
21
RXD
22
CD
23
24
25
26
27
28
Function
Description
RS-485 - A
A half-duplex RS-485 interface for con-
(non-inverting)
trolling auxiliary equipment, e g. PTZ
devices
RS-485 - B
(inverting)
Transistor Output 4
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 protectionagainst any volt-
age transients
GND
Transistor Output 3
See Transistor Output 4 (above)
Transistor Output 2
See Transistor Output 4 (above)
GND
Transistor Output 1
See Transistor Output 4 (above)
Digital Input 4
Connect to GND to activate or leave
floating (or unconnected) to deactivate
GND
Digital Input 3
See Digital Input 4 (above)
Digital Input 2
See Digital Input 4 (above)
GND
Digital Input 1
See Digital Input 4 (above)
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