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Appendix A
Standard Models
There are three possible power supply configurations.
• Network Power Supply:
Power is provided from a single source over a network, using special-purpose flat cable.
• Multiple Power Supply:
Power must be provided separately for communications and I/O. The power supply for communications can be
provided via special-purpose flat cable, but the power supply for I/O cannot.
• Local Power Supply:
Power can be provided from a single source, which can be a source other than the special-purpose flat cable.
SRT1-series Remote Terminals and Sensor Terminals can operate in high-speed communications mode only. Be
sure to use SRT2-series Remote Terminals and Sensor Terminals when the SRM1(-V2) is used in long-distance
communications mode.
The Analog I/O Terminals can be used with SRM1(-V2) PCs only.
Remote Terminals
SRT2 Series
High-speed or
long-distance
communications
SRT1 Series
High-speed
communications
only
Specifications
SRT2-ID04 SRT1-ID04 4 transistor inputs, multiple power supply, NPN
SRT2-ID04-1 SRT1-ID04-1 4 transistor inputs, multiple power supply, PNP
SRT2-ID08 SRT1-ID08 8 transistor inputs, multiple power supply, NPN
SRT2-ID08-1 SRT1-ID08-1 8 transistor inputs, multiple power supply, PNP
SRT2-ID16 SRT1-ID16 16 transistor inputs, multiple power supply, NPN
SRT2-ID16-1 SRT1-ID16-1 16 transistor inputs, multiple power supply, PNP
SRT2-ID16T
None
16 transistor inputs, multipoint common terminal, multiple power
supply, NPN
SRT2-ID16T-1 16 transistor inputs, multipoint common terminal, multiple power
supply, PNP
SRT2-OD04 SRT1-OD04 4 transistor outputs, multiple power supply, NPN
SRT2-OD04-1 SRT1-OD04-1 4 transistor outputs, multiple power supply, PNP
SRT2-OD08 SRT1-OD08 8 transistor outputs, multiple power supply, NPN
SRT2-OD08-1 SRT1-OD08-1 8 transistor outputs, multiple power supply, PNP
SRT2-OD16 SRT1-OD16 16 transistor outputs, multiple power supply, NPN
SRT2-OD16-1 SRT1-OD16-1 16 transistor outputs, multiple power supply, PNP
SRT2-OD16T
None
4 transistor outputs, multiple power supply, NPN
SRT2-OD16T-1 16 transistor outputs, multiple power supply, PNP
SRT2-ROC08 SRT1-ROC08 8 relay outputs, local power supply
SRT2-ROC16 SRT1-ROC16 16 relay outputs, local power supply
SRT2-ROF08 SRT1-ROF08 8 power MOSFET relay outputs, local power supply
SRT2-ROF16 SRT1-ROF16 16 power MOSFET relay outputs, local power supply
SRT2-MD16T
None
8 transistor inputs/8 transistor outputs, multipoint common terminal,
multiple power supply, NPN
SRT2-MD16T-1 8 transistor inputs/8 transistor outputs, multiple power supply, PNP