Trilogy Communications Mentor CX, Руководство пользователя

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Mentor CX
2.9 AES
AND
LTC
OUT
There are two female D9 sockets for the output of AES and LTC channels. AES out is the upper
connector and LTC out is the lower connector.
AES out: Chassis D9 socket (female)
Pin Description
1 AES 1 + (out)
2 AES 1 - (out)
3 Shield
4 Fault Loop + (out)
5 0V GND
6 Shield
7 AES 2 + (out)
8 AES 2 - (out)
9 Fault Loop - (out)
LTC out: Chassis D9 socket (female)
Pin Description
1 LTC 1 + (out)
2 LTC 1 – (out)
3 Shield
4 TXD (see note 1)
5 0V GND
6 Shield
7 LTC 2 + (out)
8 LTC 2 – (out)
9 RXD (see note 1)
Note 1 – serial data is for internal debug purposes only.
2.10 F
AULT
L
OOP
Mentor CX has a fault loop output indicating a combined general system failure when open. The
output is presented on the AES output connector as shown above. Electrically, the opto-isolated
output is identical to the GPI Outputs described in section 2.11.
A fault condition on one or more of the items listed causes the Mentor CX fault loop to open.
• Mentor CX Fan 1
• Mentor CX Fan 2
• Mentor CX PSU 1
•
Mentor CX PSU 2
• Fault loop primary Mentor RG (SPG A)
• Fault loop secondary Mentor RG (SPG B)
Overall fault status from each associated Mentor RG is connected to the LTC input connectors on
Mentor CX to provide an overall fault loop for the entire reference system.