Bosch ndn-921 用户手册

en | Installation

FlexiDomeHD 720p IP Camera

AR18-10-B013 | v1.52 | 2011.06

Installation and Operation Manual

Bosch Security Systems

1.

Use a shielded twisted pair (STP) Category 5e cable, 

maximum length 100 meters.

2.

Use the RJ45 female-to-female network cable connector to 

connect the network cable of the system to the RJ45 

connector of the camera (Auto MDIX compliant).

Power is supplied to the camera via the Ethernet cable, 

compliant with the Power-over-Ethernet standard.

The RJ45 female-to-female network cable connector supplied 

with the camera is unshielded and is appropriate for all 

applications that use unshielded twisted pair (UTP) network 

cable (most types). For applications that use shielded twisted 

pair (STP) connection cable and need to meet the EMC Alarm 

immunity standard (EN50130-4) or the EMC Railway imunity 

standard (EN50121-4), a shielded RJ45 female-to-female 

network cable connector (not supplied) shall be used.

Use the alarm input to connect external alarm devices such as 

door contacts or sensors. A zero potential make or break 

contact can be used as the actuator (use a bounce-free contact 

system).

–

AWG 26-16 max.(0.13-1.5 mm

2

); cut back 5 mm (0.2 in) of 

insulation.

–

Impedence: Internal pull-up 10 kOhm to +5 VDC.

–

Input voltage range: -5 VDC minimum to 40 VDC maximum.

–

Input voltage treshold: low voltage 0.8 V maximum, high 

voltage 2.4 V minimum.

–

Refer to the cable tree table to identify the wire colors for 

connecting the alarm input.

–

Configurable as active low or active high.