Owner manual

aTCA-RN720 User's Guide
46
The LED indication is mapped to the LED data values as shown in Table 8-1.
Table 8-1 LED Data and E and L/A LED Indication per Port
LINK-EN LINK ACT Description
E status L/A status
1 1 1 Link-en/Act ON BLINK
1 1 0 Link-en/Link ON ON
1 0 0 Link-en/No Link ON OFF
0 0 0 Link Disable /No Link OFF OFF
The LED DATA from the Zone 3 connector to the RTM is RTM_LED_DATA1. The aTCA-N700
front blade sends the stream as in
Figure 8-2 where the ports are arranged as in
Table 8-2. The RTM CPLD picks up necessary port information and distributes to the
corresponding QSFP/SFPs. The preamble is a LED_DATA HIGH pulse without a clock. The
CPLD deserializes the LED data and drives corresponding SFP port LEDs accordingly. The
switch serdes numbers are per aTCA-N700 front blade.
(a) aTCA-N700 front blade
Figure 8-2 Zone 3 RTM_LED_DATA format
Table 8-2 LED_DATA1 Stream: aTCA-N700 front blade
Data Port No. DataBit Description Switch Serdes No. Port Name.
0 PORT_EN
1 1
2 LINK/ACT
Port 0
3 1
57 R-P01
4
5
6
Port 1
7
Don't care Don't care X
8
9
10
Port 2
11
Don't care Don't care X