11
6
F
3
B
0
3
5
6
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.