Worth Data TriCoder t53, Руководство пользователя

Страница: 182 / 246

D-3
422 Cable pin-outs
RS-422 allows multiple numbers of TriCoders to be "multi-dropped" off a
single 422 serial port. Maximum distance for RS-422 is 4000 feet. Using
the following pin-outs, you can make your own 422 "multi-drop" cables by:
1. Tying
T+
on the TriCoder end to the
R+
on the continuous 422 line.
2. Tying T- on the TriCoder end to the R- on the continuous 422 line.
Function Mod 8
Transmit Data + ( T+ )
2
Transmit Data - (
T-
)
3
Ground 4
Receive Data + ( R+ )
5
Receive Data - ( R- )
6
Table I-7. RS-422 Multi-drop cable
You must have T+/T- in one twisted pair and R+/R- in the other.
We suggest using our F44 422 "Y" Cable instead. One end of this cable
goes into the TriCoder, the other 2 ends have female modular 8 pin
connectors. The only cables you provide are cables with male modular 8
pin connectors on each end to connect between TriCoders and a cable
coming from the 422 serial port with a male modular 8 pin connector to
connect to the first TriCoder. At the end of the string of TriCoders, tie pins
2&3 and 5&6 together with 120 ohm resistors or order our 422 terminator
plug. We recommend using Belden 1227AI (or Category 5 cable if you
don’t want to buy new wire) for all of the 422 cabling above.
Beside the standard cable pin-outs provided above, there are several other
cable pin-outs which may prove useful to users.
F38 Data Cloning Cable
The pin-outs for the F38 TriCoder Data cloning cable (Male RJ45 on both
ends) are:
Wedge/RS-232 RS-422
RJ45
male
RJ45
male
RJ45
male
RJ45
male
1 1 2 5
2 3 3 6
3 2 4 4
4 4 5 2
6 6 6 3
Table I-9. F38 Data Cloning Cable