sepam 20 user manual - Schneider Electric
sepam 20 user manual - Schneider Electric
sepam 20 user manual - Schneider Electric
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6<br />
PE50024<br />
Installation ACE937<br />
Fiber optic interface<br />
6/42<br />
Function<br />
The ACE937 interface is used to connect Sepam to a fiber optic communication star<br />
system.<br />
This remote module is connected to the Sepam base unit by a CCA612 cord.<br />
Characteristics<br />
ACE937 module<br />
Weight 0.1 kg (0.22 lb)<br />
Assembly On symmetrical DIN rail<br />
Power supply Supplied by Sepam<br />
ACE937 fiber optic connection interface. Operating temperature -25°C to +70°C (-13°F to +158°F)<br />
Environmental characteristics<br />
Fiber optic interface<br />
Same characteristics as Sepam base units<br />
Fiber type Graded-index multimode silica<br />
Wavelength 8<strong>20</strong> nm (invisible infra-red)<br />
Type of connector ST (BFOC bayonet fiber optic connector)<br />
CAUTION<br />
HAZARD OF BLINDING<br />
Never look directly into the end of the fiber optic.<br />
Failure to follow this instruction can cause<br />
serious injury.<br />
Fiber optic<br />
diameter (µm)<br />
50/125<br />
62.5/125<br />
100/140<br />
Numerical<br />
aperture (NA)<br />
0.2<br />
0.275<br />
0.3<br />
Maximum Minimum optical<br />
attenuation power available<br />
(dBm/km) (dBm)<br />
2.7 5.6<br />
3.2 9.4<br />
4 14.9<br />
Maximum<br />
fiber length<br />
700 m (2300 ft)<br />
1800 m (5900 ft)<br />
2800 m (9<strong>20</strong>0 ft)<br />
<strong>20</strong>0 (HCS) 0.37 6 19.2 2600 m (8500 ft)<br />
DE80037<br />
DE51666<br />
mm<br />
in<br />
1.81<br />
2.83<br />
3.46<br />
(1) 70 mm (2.8 in) with CCA612 cord connected.<br />
Maximum length calculated with:<br />
b Minimum optical power available<br />
b Maximum fiber attenuation<br />
b Losses in 2 ST connectors: 0.6 dBm<br />
b Optical power margin: 3 dBm (according to IEC 60870 standard).<br />
Example for a 62.5/125 µm fiber<br />
Lmax = (9.4 - 3 - 0.6)/3.2 = 1.8 km (1.12 mi)<br />
Description and dimensions<br />
C<br />
RJ45 socket to connect the interface to the base unit with a CCA612 cord.<br />
1 Link activity LED, flashes when communication is active<br />
(sending or receiving in progress).<br />
2 Rx, female ST type connector (Sepam receiving).<br />
3 Tx, female ST type connector (Sepam sending).<br />
Connection<br />
b The sending and receiving fiber optic fibers must be equipped with male ST type<br />
connectors<br />
b Fiber optics screw-locked to Rx and Tx connectors.<br />
The interface is to be connected to connector<br />
cord (length = 3 m or 9.8 ft, green fittings).<br />
C<br />
on the base unit using a CCA612<br />
PCRED301005EN - 06/<strong>20</strong>08
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