Calian SatService sat-nms LFTRX Manuel de l'utilisateur - Page 8

Parcourez en ligne ou téléchargez le pdf Manuel de l'utilisateur pour {nom_de_la_catégorie} Calian SatService sat-nms LFTRX. Calian SatService sat-nms LFTRX 13 pages. Optical receiver/transmitter

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When you connect the L-Band Optical Link chassis, please consider the following:

J1 DC-Power Interface is a standard 9-pin SUB-D socket-connector. This connector contains

the alarm contacts of the internal failure open collecttor transistor, the signal monitor and the

DC-Power Supply Input. To meet mentioned EMC standards, use double shielded twisted

pair CAT7 S/FTP Network cable, e.g. DRAKA UC900 SS27 Cat.7 PUR. Take care, that cable

shielding is connected properly.

RF-In/ Out RF-Interface The input and output RF-connectors are all SMA/50Ohm female.

Use double shielded coaxial cables, e.g. RG223, only.

Optic TX/ RX Optic-Interface The fibre optic connectors are FC/APC types. It is essentially to

use single mode cables with 8° angled polish for proper function.

2.4.1 DC and data connector

The Alarm and data connectors of the sat-nms LFTRX chassis are located at the front side of the

enclosure up right. The figure below illustrates the location of the connectors and the pin out.

To meet mentioned EMC standards, use double shielded twisted pair CAT7 S/FTP Network cable,

e.g. DRAKA UC900 SS27 Cat.7 PUR, for connecting network, serial and alarm interfaces. Ensure

that the shield is connected properly.

DC Power Supply

The unit needs 9..24V DC at the corresponding pins of this interface. The LED PS shows the

presence of the power supply.

Alarm

Open collector contacts represent a fault state of the unit. With solder jumper SJ1 and SJ2 the

polarity of the alarm interface can be chosen (NC or NO at Alarm). The LED LD shows the status

of the Laser Diode Alarm (green light means current is in the current limt range (10 to 45.5mA).

The LED PD shows the status of the PIN Diode Alarm (green light means the optical level is above

220uW).

M onitoring

www.satnms.com

LFTRX-UM-2107 Page 7/12