Parameters Comments Min. Type Max. Units

Power Supply
Voltage Connection via 5.08mm 2-way connector or a 2.1mm jack socket 8 24 28 VDC
Current (See note 1) Including FET outputs - 0.15 5 A

Input characteristics
4 frequency inputs - - - - -
Input voltage -12 - 12 V
Input current - - - 10 mA
22 Analogue input channels Configurable as current/voltage/resistance/digital. Connection via 5 x 8-way and 1 x 4-way 3.81mm connectors - - - -
Input voltage - 0 - 10 V
Input current - 0 - 25 mA
Input thermistor - - 10 - kO
Sample Frequency - - - 25 SPS

Output characteristics
4 analogue 0-10V out - - - - -
Output voltage - 0 - 10 V
Output current - - - 10 mA
4 Relay Channels Single-pole normally open contacts. Connection via 3.81mm 8-way connector - - - -
Voltage rated - - - 240  VAC
Current capacity - - - 5 A
4 High side channels With short circuit, overload, and over temperature protection. Connection via 2 x 3.81mm 8-way connector - - - -
Voltage Rated - - - Supply -
Current Rated - 1.8 - 2.2 A
4 PWM channels Connection via 2 x 3.81mm 8-way connector - - - -

Control
8 status LEDs Signal, Log, Online, Server Alarm, Power, TX, RX - - - -
Sounder Internal piezo sounder - 110dB @ 10cm - -
2 Buttons Reset, Sync - - - -

Communication Characteristics

10 Base-T Ethernet Connection via RJ45 connector 10Mb/s - - -
RS232 (2 ports) Connection via 3.81mm 8-way connector 9600b/s - 115200b/s -
RS485 Same connector as the RS232 ports 9600b/s - 115200b/s -
USB USB Type B USB 1.1 - USB 2.0  
V22 PSTN Analogue modem (optional) Replaces the GPRS modem Connection via phone jack cable - - 2400b/s -
GPRS digital modem (standard) Replaces the PSTN modem Connection via SMA connector - - 36.6Kb/s -

Environment Characteristics

Operating temperature - 0 - 70 °C
Storage temperature - 0 - 70 °C
Environment resist - - IP43 - -

Dimensions
Length Including mounting flange - 300 - mm
Height - - 42 - mm
Width - - 120 - mm
Weight With GPRS modem - 1 - kg

Other
Battery Backup Data and configuration information only (No data is collected during power failure) 6 - - months

Notes

NOTES 1 : The typical value stated shows current consumption of the t-mac when idle. Maximum current will depend on output loads and whether the modem is transmitting or not.