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AM18-Q0605 | v2.0 | 2012.04 Installation and Operation manual Bosch Security Systems
4.5 Ethernet connection
The standard RJ-45 Ethernet socket is used to connect the unit directly to a PC or to a
network. To connect directly to a network hub, use a straight-through network cable. To
connect directly to a PC, use a cross-over network cable. Consult with your local IT personnel
for the specific type of cable needed. The maximum cable length from node to node is limited
to 100 meters (300 feet).
Specifications
Connection: 10/100 BaseT, IEEE 802.3
Differential signal voltage: ± 2.8 V maximum, inputs have transient overvoltage protection
Ethernet port details: EEE 802.3/802.3u — 100Base-TX/10Base-T physical layer
Auto negotiation: 10/100, full/half duplex
Cable length: 100 meters (100 ohm unshielded twisted pair cable or 150 ohm shielded
twisted pair cable, category 5 or higher).
Impedance: built-in compensation for impedance matching
Indicators: ACT, 10/100
Figure 4.6 RJ-45 Ethernet connector
Table 4.2 LAN - RJ-45 Ethernet socket
Signal name Pin number Description
LAN_TX + 1 Ethernet transmit line plus
LAN_TX - 2 Ethernet transmit line minus
LAN_RX + 3 Ethernet receive line plus
N/C 4 No connection
N/C 5 No connection
LAN_RX - 6 Ethernet receive line minus
N/C 7 No connection
N/C 8 No connection