RFL Communications 21 Sub-MUX Manuale Utente Scaricare il pdf (Pagina 21)

RFL SMX3/40 Page 21 of 24 Issue 2.02

User Manual

07 May 2009

Example 4: Port expansion:

Set Aggregate Direction for A2 and B1 to X21 port, and for B2 to Concatenation port.

Transmit and Receive data is presented at all ports, but terminates at B2. Only

possible on a well disciplined system where only one terminal transmits at once.

DIP switch settings for A2 and B1 as example 2, units A2 and B1 respectively

DIP Switch Settings for B2

8 7 6 5 4 3 2 1

SW1 * * * * * * * *

SW2 0 1 0 1 1 0 0 1

SW3 * * * * * * * *

SW4 * * * * * * * *

SW5 0 0 1 1 0 0 0 0

SW6 0 0 0 1 * * 1 *

* indicates setting not applicable to this setup

Substation A Substation B

X21

Aggregate Concatenation

B2B1A2

V24

Port 2

V24

Port 2

V24

Port 2

Aggregate channel: V24 port 2 on each unit is allocated to channel B

Example installation – Port expansion

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RFL Communications 21 Sub-MUX Manuale Utente Pagina 21