GE IS220PTCCH1B Thermocouple Input Pack
Description：
IS220PTCCH1B is GE Mark VIe series Thermocouple Input Pack.  IS220PTCCH1B is compatible with the thermocouple input terminal board TBTC, and the simplex STTC terminal board, but not the DIN-rail mounted DTTC board. The following table provides the details of the terminal board compatibility.

As the Thermocouple Input IS220PTCCH1B, short for PTCC， provides the electrical interface between one or two I/O Ethernet networks (lONet) and a thermocouple input terminal board. The I/O pack contains a BPPx processor board and an acquisition board specifie to the thermocouple input function, Input to the PTCC is through dual RJ-45 Ethernet connectors and a three-pin power input, Output is through a DC-37 pin connector that mates directly with the associated terminal board connector, Visual diagnostics are provided throughindicator LEDs.

In a simplex configuration using the TBTCHlC terminal board, each PTCC is capable of handling up to 12 thermocouple inputs, for a total of 24 inputs (with two of them). ln simplex configuration using the TBTCHlB terminal board, each PTCC is capable of handling up to 12 thermocouple inputs (for a total of 24 inputs), provided the two PTCCs are installed at the JRA and JTB connectors. In TMR configuration with the TBTCH1B, three PTCCs are used with three cold junetions, but only 12 thermocouplesare available.

IS220PTCCH1A and IS220PTCCH1B support E, j, K, S, and 'T types of standard thermocouples and mV inputs. The mV span is -8to 45 mV.
Difference between IS220PTCCH1A and IS220PTCCH1B:
IS220PTCCH1A contains a BPPB processor board. 
IS220PTCCH1B contains a functionally compatible BPPC processor board that is supported in the ControlST* software suite V04.06 and later.
Ambient Rating for Enclosure Design: IS220PTCCH1A is rated from -30 to 65°C (-22 to 149 °F)
                                                      IS220PTCCH1B is rated from -40 to 70°C (-40 to 158 °F)