RFL Communications 21 Sub-MUX Manuel d'utilisateur télécharger pdf (Page 9)

RFL SMX3/40 Page 9 of 24 Issue 2.02

User Manual

07 May 2009

Optional Concatenation Port Pin-out (when in DCE configuration) – D15F

Circuit Pin A Pin B Direction Notes

T Transmit Data 2 9 Input

R Receive Data 4 11 Output

C Control 3 10 Input Signal ignored

I Indication 5 12 Output Permanently on

S Signal Element

Timing

6 13 Output Timing signal transmitted

to network

G Ground 8 15

Screen / Drain

Must be earthed to shell

Aggregate Concatenation

Aggregate Concatenation is the interconnection at aggregate level of two co-located

SMX3/40 units. In this mode the Concatenation Port is enabled as DTE with Timing X

enabled. The timing signal is then transmitted on pins 7 and 14 (Xa and Xb).

Aggregate Concatenation to a co-located SMX3/40 requires a five twisted pair cross-

over cable of, pins A to A and B to B:

Aggregate Concatenation Cable

D15M – D15M

Pair Pin End A End B

A 2 4

B 9 11

A 4 2

B 11 9

A 6 7

B 13 14

A 7 6

B 14 13

A 8 8

B 15 15

Screen / Drain

Must be earthed to

connector shells at

both ends

Use 5 pair plus ground stranded cable with overall shield (eg RS 111-8988).

Maximum recommended length 5m; absolute maximum 10m.

DIP switches provide configuration options, see section 10.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 23 24

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RFL Communications 21 Sub-MUX Manuel d'utilisateur Page 9