Axis Communications 2401 User Manual
Page 37
AXIS 2400/2401 Admin Manual
The AXIS 2191 Audio Module
37
Technical Specifications for the AXIS 2191
Connection Diagram
The Audio Module to Video
Server Serial Cable
The serial cable supplied with your AXIS
2191 is wired as shown in the table:
• Operating temperature: 40-105
o
F (5-40
o
C).
• Humidity - 8-80% relative humidity.
• EMC -
: EN55024, EN55022, Class B and
EN61000-3-3.
• EMC - FCC Class A of FCC Rules and Regu-
lations part 15, subpart B.
• EMC -
• Full-duplex audio: Audio data encoded in
ADPCM format at 32kbps, 8 kHz sampling
(G.721). Data is sent using HTTP.
• 9-pin D-SUB serial connector: RS-232.
• Power Input: Axis PS-D power supply.
• Microphone Input: 1-50mVpp. PC type.
• Line Out: Unbalanced, 0.05-1.0Vpp
• Line Input: Balanced 0.05-1Vpp. Connect
source ground to pin 2 and source signal to
pin 1 if the source is unbalanced.
• Speaker Output: Balanced, 0.5W. Imped-
ance 8-32 Ohms. Connect directly to
speaker without capacitors.
• Alternative Power: 12-15VAC, min 10VA,
or 15-20VDC, min 7W.
• Metrics: Height: 1.1” (27mm),
Width: 4.4” (112mm), Length: 4.3” (110mm),
Weight: 0.7lb (0.32kg).
• Maximum number of users: 10 (on local
area network).
Pinouts for the RS-232 Port
Audio
Pin
Pin
Server
Signal
IN
1
1
IN
CD
IN
2
2
IN
RXD
OUT
3
3
OUT
TXD
OUT
4
4
OUT
DTR
GND
5
5
GND
GND
IN
6
6
IN
DSR
OUT
7
7
OUT
RTS
IN
8
8
IN
CTS
Unused
9
9
IN
RI