RFL Communications 21 Sub-MUX Manuel d'utilisateur télécharger pdf (Page 18)

RFL SMX3 / 21 Page 18 of 22 Issue 1.4

User Manual

08 June 2009

11. LEDs

12 LEDs are located in the centre of the board for connection via flexible light pipes

to display locations. See equipment layout.

LED Colour Function

1 Green Power input 1

2 Green Power input 2 (only where applicable)

3 Green X.21 Data Port A Transmitting data

4 Green X.21 Data Port A Receiving data

5 - Not used

6 - Not used

7 Green V.24 Port B Transmitting data

8 Green V.24 Port B Receiving data

9 Green V.24 Port C Transmitting data

10 Green V.24 Port C Receiving data

11 Red/Green X.21 Agg. channel – see following table

12 Red/Green Concatenation channel – see following table

Note: For units connected in a concatenated network, data on aggregate channels 2

and 3 is broadcast to all configured V.24 ports regardless of whether there is

equipment connected to those ports. In these cases Channel B and C Rx LEDs (viz.

data being transmitted from a DCE port) will signal green as traffic is carried.

LEDs 11 & 12 illuminate according to equipment and aggregate status on the

associated port. When communications are healthy, the LED should be solid green

for an enabled port.

X.21 Aggregate and Concatenation LED status

Display Condition

Off Port disabled

Fast flash (3/s) Configuration error

Slow flash (1/s) No clock present

Steady Bit timing locked to Master Clock - Healthy

Red Aggregate frame not synchronised

Green Aggregate frame synchronised - Healthy

Yellow Yellow alarm (remote alarm)

11 12 2

3 4

7 5

10 9

X.21 V24

1 2 ... 13 14 15 16 17 18 19 20 21 22

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RFL Communications 21 Sub-MUX Manuel d'utilisateur Page 18