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AXIS Q7401 Video Encoder
Technical Specifications
Audio Connector
3.5 mm audio connectors
(stereo)
123
1 Tip 2 Ring
3 Sleeve
Audio Input
Microphone/Line in
Ground
Audio Output
Line out (mono)
Ground
RS-485/422 Connector
Two 2-pin terminal blocks for RS485/RS422 serial interface. The serial
port can be congured to support:
• Two-wire RS485 half duplex
• Four-wire RS485 full duplex
• Two-wire RS422 simplex
• Four-wire RS422 full duplex point to point communication
RS485/422
1 2
RX/TX TX
3 4
Function Pin Notes
RS485/RS422 RX/TX A
1
RS485/RS422 RX/TX B
2
(RX) For full duplex RS485/RS422
(RX/TX) For half duplex RS485
RS485/RS422 TX A
3
RS485/RS422 TX B
4
(TX) For full duplex RS485/RS422
SD Card Slot
Supports microSD cards with up to 64 GB of storage. For best recording performance, use a microSDHC or microSDXC card with
speed class 10.
Performance Considerations
When setting up your system, it is important to consider how various settings and situations will affect performance. Some factors
affect the amount of bandwidth (the bit rate) required, others can affect the frame rate, and some affect both. If the load on the
CPU reaches its maximum, this will also affect the frame rate.
The following factors are among the most important to consider:
• High image resolution and/or lower compression levels result in images containing more data. Bandwidth affected.
• Access by large numbers of Motion JPEG and/or unicast H.264 clients. Bandwidth affected.
• Simultaneous viewing of different streams (resolution, compression) by different clients. Effect on frame rate and
bandwidth.
• Accessing Motion JPEG and H.264 video streams simultaneously. Frame rate and bandwidth affected.
• Heavy usage of event settings affect the product’s CPU load. Frame rate affected.
• Heavy network utilization due to poor infrastructure. Bandwidth affected.
• Viewing on poorly performing client computers lowers perceived performance. Frame rate affected.
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