semaphore TBOX LT2-530 Series, User Manual, Page: 157 / 197

Version : 1.09 157
Protection
Power Supply (Vin) Reverse polarity protection
FUSE external 12 V battery Soldered Fuse of 3 A. Not replaceable by user.
Memory
Flash 32 MB (Uboot, LINUX, OS, Application, Web & Reports, Sources)
SDRAM 64 MB (Running part of LINUX, OS, Application)
SRAM 1 MB, backed up with Lithium battery (datalogging, log, backup value of Tags)
MicroSD (optional) Max. 8 GB
RS 232
Connector Spring-cage terminal block
Cabling (see schema next) 2 Wires: TxD, RxD
Protocols ModBus-RTU ‘Slave’, ‘Master’ (supplementary protocol with addons)
RS 485
Connector Spring-cage terminal block
Cabling (see schema next) 2 Wires: A, B
Number of slaves 256 (if RS485 technology of slaves allows it too)
Protocols ModBus-RTU ‘Master’, ‘Slave’ (supplementary protocol with addons)
Isolation No isolation between signals A - B and Power Supply
Termination Terminations of 120Ω (between A-B at both ends) are in most cases not
necessary, but they increase the quality of the signals for long distance
connections.
Failsafe bias resistors included: pullup and pulldown resistors which assures a
logical level TRUE when A and B are opened or in short-circuit.
Ethernet
Model 100 BASE-TX (4 wires)
Full Duplex / Auto-negotiation
Connector RJ-45
Cabling Straight pinned CAT5 shielded cable or Crossover CAT5 shielded cable
Speed 10/100 Mbits
Protocols ModBus/TCP ‘Master’ and ‘Slave’, SMTP, FTP, HTTP, Ping, ...
TCP/IP Connections - “Client” for ModBus Transactions: 1 socket – 1 context
- “Client” for Alarm: 2 sockets (required for FTP) – 1 context
- “Server” ModBus: 64 sockets – 64 contexts
- “Server” HTTP: 64 sockets – 64 contexts
LEDs 100: ON when connected at 100 MHz – OFF when connected at 10 MHz
Lk: ON when linked – FLASH when communicating
USB
Model USB 2.0
Connector USB type A female (socket)
Cabling USB A/A male cable (host to host)
Speed High Speed (480Mbits / sec.)
Current Max 500mA at ambient temperature
Temperature / Altitude
Storage -40°C…+85°C
Working -40°C...+70°C
Hygrometry 0 to 95 % without condensation
Altitude Maximum 4000 m
Dimensions
Without connector Height x Depth x Width: 150x83x29 mm (5.906x3.27x1.142 inches)
With rack, without connector Height x Depth x Width: 152x115x40 mm(5.984x4.428x1.575 inches)
Weight 300 gr