Vaisala DXL421 - Multi-Point; Application, DXL421 and ROSA in 2-Wire Multi-Point Operation; Figure 6 DXL421 and ROSA in Leased Line Multi-Point

User's Guide _______________________________________________________________________
14 ___________________________________________________________________ M210636EN-B
Multi-point
The DXL421 can also be used in the leased line mode multi-point
application.
Application, DXL421 and ROSA in
2-wire Multi-point Operation
PC/DTE and DXL421: Set DXL421 mode as follows; originate, 1200
baud and -6.0db. Set PC/DTE serial port 1200 baud (if DXL421 is set
DIL/4 ON Speed buffer 9600 mode then set PC/DTE serial port 9600
baud).
DRI511/521 and DXL421: Set DXL421 mode as follows; answer,
1200 baud and -6.0db. Connect a wire from DRI511/521 RTS to
DXL421 RTS. Set the serial port of DRI511/521 interface card to RS-
232 1200 baud and fixed mode.
0410-174
Figure 6 DXL421 and ROSA in Leased Line Multi-point