The i/o-b connector, I/o-b – Axis Communications AXIS 2420 User Manual
Page 66

The Unit Connectors
AXIS 2420 User’s Manual
66
The I/O-B Connector
The 4-pole I/O-B connector provides a digital relay switch for the control of external
surveillance devices and services; such as, lighting, annunciators, audible alarms, etc. It is
also an RS-485/422 port for the control of pan tilt devices, etc. A pinout table is provided
below.
Pinout Information
Schematic diagram - showing possible application
Pin
Function
1
Relay switch - pole 1. Electrically isolated from chassis and connectors.
2
Relay switch - pole 2. Electrically isolated from chassis and connectors.
3
RS-485/422 - B (inverting)
A half-duplex RS-485/422 interface for controlling auxiliary equipment.
4
RS-485/422 - A (non-inverting)
1
2
3
4
I/O-B
Relay
Switch
Mains Power
24V DC
Appliance
Optional
Relay
Switch
o
o
o
o
x
o o
o o
o
o
o
o
o
RS-485/422 B
RS-485/422 A
1
2
3
4
+
_
!
!
PTZ
Device
External
- Camera Station (47 pages)
- Fixed Dome Network Camera AXIS P3301 (74 pages)
- AXIS 214 PTZ (70 pages)
- AXIS MFD-R (75 pages)
- AXIS 213 PTZ (2 pages)
- 232D (55 pages)
- 232D (2 pages)
- AXIS 223 (1 page)
- Fixed Dome Network Camera AXIS P3301-V (50 pages)
- 2100 (2 pages)
- 210 (66 pages)
- AXIS T8311 (34 pages)
- AXIS 206W (34 pages)
- 209FD/FD-R (71 pages)
- AXIS 206M (36 pages)
- 213 PTZ (3 pages)
- 216FD/FD-V (64 pages)
- HPV42K1A000 (2 pages)
- AXIS T95A00 (73 pages)
- AXIS 209MFD-R (73 pages)
- AXIS T8310 (10 pages)
- AXIS 209FD-R (73 pages)
- 2120 (2 pages)
- 2120 (68 pages)
- AVTPSC (2 pages)
- AXIS Q1755 (59 pages)
- Axis 216MFD (74 pages)
- AXIS FD-R M12 (46 pages)
- AXIS 209MFD (73 pages)
- 207W (59 pages)
- 230 MPEG-2 (62 pages)
- 2130 (2 pages)
- Axis 211A (76 pages)
- Axis 210 (83 pages)
- AXIS 233D (69 pages)
- AXIS 221 (64 pages)
- 211 (66 pages)
- 207 (54 pages)
- Axis 216FD-V (4 pages)
- IP-Surveillance (8 pages)
- AXIS 207 (73 pages)
- AXIS 223M (70 pages)
- 2401 (87 pages)
- AXIS 211M (2 pages)
- 207MW (60 pages)