Dimensions   115 x 48 x 97 mm (h, l, d)
E.M.I..   89/336/CEE - EN50082-2 - EN55022 - EN61000-4-5
Electrical security   EN 60950
Protection   IP30
Power supply / consumption   Double DC power supply 9 to40 VDC
Modem : 160 mA / 24 VDC
Repeater : 350 mA / 24 VDC
Operating temperature   0°/ + 60°C air sec
RS232   Non insulated
Asynch. 7 or 8 bits + 1 start, 1 ou 2 stops
Parity : none / even / odd
1,2 to115,2 kb/s
RS485 / RS422   Non insulated - Integrated polarisation
Asynch. 7 or 8 bits + 1 start, 1 or 2 stops
Parity : none / even / odd
1,2 to 115,2 - 93,5 - 187,5 - 500 - 1500 kb/s
Fieldbus   PROFIBUS DP, MODBUS, UNITELWAY, DH-485, SYSMAC-WAY
Configuration   By switches
Type of fibre optics   Multimode G50/125 or G62,5/125
Monomode E10/125
Reception and emission fibres
Optical connector   ST
Modulation   On-line coding of data
Alarm contact  

Bus topology:
Open when a carrier failure has been detected on any TX or RX F.O. connected to the repeater.

Ring topology /« ring master» repeater:
Open when a carrier failure has been detected on any F.O. of the ring.

Ring topology / any repeater:
Open when a carrier failure has been detected on any TX or RX F.O. connected to the repeater.


Range of a multipoint network
Minimum range with multimode F.O. (25°)
F.O. type G50/125
   F.O. type G62/125
Reference Optical source Budget
(dB) 		Reserve
(dB) 		  Attenuation
(dB/km) 		min. range
(km) 		  Attenuation
(dB/km) 		min. range
(km)
    A B   C D1=(A-B)/C   C D1=(A-B)/C
RFO485-11 820 nm 12 3   2,5 3,5   3,5 2,6
RFO485-22 1300 nm 12 3   1 9   1,5 6

 

Minimum range with single mode F.O. (25°)
Reference Optical source Budget
(dB) 		Reserve
(dB) 		Attenuation
(dB/km) 		min. range
(km)
    A B C D1=(A-B)/C
RFO485-33 1300 nm 17 3 0,5 28
RFO485-44 1300 nm 10 3 0,5 14

       
Range of a ring network
The total length (D2) of the ring in km can not exceed the value given by the formula below:

 

 

D2 = 200 X (10-N) / R if the duration of silence between 2 frames sent by the master (waiting for a reply) is greater than 1 character length..
D2 = 200 X (40-N) / R if the duration of silence between 2 frames sent by the master (waiting for a reply) is greater than 4 character lengths.

 
N= Number of optical repeaters
R (Kb/s) = data rate of the asynchronous link (between 1,2 and1500) 		 
The latent time between frames must be greater than 2 character lengths.  
The length (D1) of each segment of the ring must not exceed the range authorised by the type of fibre optic and the repeater installed (see table 1 or 2 above). Moreover the length of each segment must not exceed the values indicated by the table below.  

Table 3 :
Max. length of a segment of the ring
kb/s D1 in km
9,6 20,0
19,2 10,0
38,4 5,0
93,75 2,1
115,2 1,7
187,5 1,0
500 0,4
1500 0,1