Axis Communications Q1932E Performance Considerations, RS485/422 Connector, Function Pin

AXIS Q1932–E PT Mount Thermal Network Camera

Technical Specifications

RS485/422 Connector

Two 2-pin terminal blocks for RS485/RS422 serial interface. The serial port can be configured 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

Function	Pin	Notes
RS485B alt RS485/422 RX(B)	1	RX pair for all modes (combined RX/TX for 2-wire RS485)
RS485A alt RS485/422 RX(A)	2
RS485/RS422 TX(B)	3	TX pair for RS422 and 4-wire RS485
RS485/RS422 TX(A)	4

Important

The recommended maximum cable length is 30 m (98.4 ft).

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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