Voice Broadband Optical Multiplexer
User
Manual
13
1) 1 and 2 are used for sending, 3 and 6 for the receiving, and 4, 5,
7 and 8 are two-way lines.
2) 1 and 2 must be twisted pair, 3 and 6 twisted pair, 4 and 5
twisted pair, and 7 and 8 twisted pair.
Straight-through cable: Both ends are connected according to the
T568 sequence standard.
Cross-line cable: one end uses the sequence of T568A, the other
end uses line sequence T568B connection. Specific link:
1) Connect the equipment with PC or router directly: use
straight-through cable, the connect method of two ends are the
same
2) Connect the equipment and switches (or HUB) cascadly: use
cross-line cable, the connect method of two ends are different.
Cross-line cable: one end uses the sequence of T568A, the other
end uses line sequence T568B connection. Specific link:
5.1.3 How to make serial (RS232/485/422) interface
connecting cable
Provide two RJ45 interfaces, each one can provide two
RS232/485/422 interfaces; the specific line sequence is as
following:
Pin
RS232Definition
RS485
Half
Duplex
RS485Duplex
RS422Definition
1
RS232Input
2
ON(Fixed
Output
Effective Signal)
3
RS232 Output
4
GND
GND
GND
GND
5
DATA+
TXD+
TXD+
6
DATA-
TXD-
TXD-
7
RXD+
RXD+
8
RXD-
RXD-
