Toshiba S20LP - Manual (Page 5)

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1. Introduction to S20LP
1.1 System configuration
The following figure shows the typical system configuration of the S20LP.
Station No.1
S20LP Port
T2N T3H
Station No.2
SN325
T3H
I/O bus
OTR2 OTR2
SN325
T3H PCS
OTR1 OTR1
T2N
internal bus
OTR1 OTR1 OTR2 OTR2
(General station) (General station)
(Main terminal station) (Back-up terminal station)
External
Loop
Device
PTLS9
OTR1 OTR2
(General station)
Transmission line 1 (Loop 1) : The data is sent from OTR1 to OTR2.
Transmission line 2 (Loop 2) : The data is sent from OTR2 to OTR1.
Total number of stations Max. 64 stations
Transmission distance 1 km (between stations)
4 km (between stations ; connecting SBR22)
30 km (system totla)
Scan transmission capacity 4096 words
Maximum transmission capacity 1024 words / station
Parameter setting tool S-LS (runs on personal computer)
(Note 1) SBR22 is the long distance repeater for S20LP