Toshiba S20LP - Manual (Page 12)

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1.4 Specifications
S20LP system specifications
Transmission cable Silica glass SI 200/230 µ m
H-PCF (Hard-Plastic Clad Fiber)
Cable connection
(cable side connector)
F07 connector
(JIS C5976)
Transmission distance Max. 1 km (between stations)
Max. 4 km (between stations ; connecting SBR22)
Max. 30 km (system total)
Topology Loop
Number of stations Max. 64 stations
Transmission speed 2 Mbps
Transmission code Differential Manchester
Modulation method Baseband
Communication service (1) Scan transmission (cyclic broadcast)
(2) Message transmission (on request)
S20LP-station specifications
S20LP port for T2N S20LP-station for T3H
Station type PU245N...Optical fiber SN325...Optical fiber
Max. number on
T2N/T3H 1 station
(Include of S20LP port)
2 stations (Note 1)
Scan transmission
capacity 4096 words
(Link register W (2048 words) in T2N/T3H is assigned)
Message transmission
support S-LS (primary / secondary)
T-PDS (primary / secondary)
T-series Computer Link Protocol (secondaty)
RAS information Station status, Online / Standby map (S20LP port / SN325)
Consumed current
(internal 5Vdc)
S20LP port ... 1.5 [A] or less SN325 ... 800 [mA] or less
(Note 1) A T3H which has two S20LP-stations can work as a bridge station for two S20LP
layers.