User Guide

Axis Rack Mounted Video Server Solution

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) COM1 is internally multiplexed

with the RS-485 port via the Terminal Block Connector. COM2 can also be used for connecting

a modem or the AXIS 2191 Audio Module.

The Axis Blade Video Servers support several Pan Tilt device drivers that are selected from

the Administration Tools in the video server’s internal web pages. Please see

www.axis.com for a complete list of supported devices.

Connector Pinout

The pinout for the I/O Terminal Block and the signaling details for each pin are described

in the table below:

Notes: 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 I/O Terminal Block appendix in the AXIS

2400+/2401+ Administration Manual.

Pin Function Description Pin Function Description

1 COM2 (RS-232) RI 15 RS-485-A Half-duplex RS-485 interface

2 COM2 (RS-232) CTS 16 RS-485-B

3 COM2 (RS-232) RTS 17 N/A

4 COM2 (RS-232) DSR 18 GND

5 GND 19 N/A

6 COM2 (RS-232) DTR 20 RELAY Relay Switch - electrically isolated

from chassis and connectors

7 COM2 (RS-232) TXD 21 GND

8 COM2 (RS-232) RXD 22 RELAY Relay Switch - electrically isolated

from chassis and connectors

9 COM2 (RS-232) CD 23 Digital Input 4 Photocoupled Input 4

10 GND 24 GND for Digital Inputs

11 COM1 (RS-232) DSR 25 Digital Input 3 Photocoupled Input 3

12 COM1 (RS-232) RTS/DTR 26 Digital Input 2 Photocoupled Input 2

13 COM1 (RS-232) TXD 27 GND for Digital Inputs

14 COM1 (RS-232) RXD 28 Digital Input 1 Photocoupled Input 1