AXIS P1357-E Network CameraTechnical specifications1 Tip 2 Ring 3 SleeveAudio Input Microphone/Line in GroundAudio Output Line out, mono (stereo connectorcompatible)Line out, mono (stereo connectorcompatible)GroundRS485/RS422 connectorTwo 2-pin terminal blocks for RS485/RS422 serial interface used to control auxiliary equipment such as pan-tilt devices.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 communicationFunction Pin NotesRS485B alt RS485/422 RX(B) 1RS485A alt RS485/422 RX(A) 2RX pair for all modes (combined RX/TX for 2-wire RS485)RS485/RS422 TX(B) 3RS485/RS422 TX(A) 4TX pair for RS422 and 4-wire RS485ImportantThe recommended maximum cable length is 30 m (98 ft).Performance considerationsWhen setting up your system, it is important to consider how various settings and situations affect the performance. Some factorsaffect the amount of bandwidth (the bitrate) required, others can affect the frame rate, and some affect both. If the load on theCPU reaches its maximum, this also affects the frame rate.The following factors are the most important to consider:• High image resolution or lower compression levels result in images containing more data which in turn affects thebandwidth.• Access by large numbers of Motion JPEG or unicast H.264 clients affects the bandwidth.• Simultaneous viewing of different streams (resolution, compression) by different clients affects both frame rate andbandwidth.• Accessing Motion JPEG and H.264 video streams simultaneously affects both frame rate and bandwidth.• Heavy usage of event settings affect the product’s CPU load which in turn affects the frame rate.• Using HTTPS may reduce frame rate, in particular if streaming Motion JPEG.• Heavy network utilization due to poor infrastructure affects the bandwidth.• Viewing on poorly performing client computers lowers perceived performance and affects frame rate.• Running multiple AXIS Camera Application Platform (ACAP) applications simultaneously may affect the frame rate andthe general performance.67