GE Hydran 201i - Description of Major Components

MA-033 Rev. 14.0, 12-Nov-18
Hydran* 201i Instruction Manual
Page 44
• Network and communication management. The H201Ci-C (or any other Hydran
201Ci Controller in a local network) is connected to the host computer with an RS-
232 or USB link or a modem (optional) and to each H201Ti with a supervisory link.
A maximum of 32 H201Ci Controllers (H201Ci-C and/or H201Ci-1) can be
connected together with an RS-485 link to establish a local network that can
contain up to 128 H201Ti’s. For details on network configurations, see Chapter
10.
4.1.2 Description of Major Components
An internal view of the Hydran 201Ci-C is presented in Figure 4-2 below.
1. Enclosure: The H201Ci-C cabinet is rated Type NEMA 4X. With the standard
internal heater, the instrument operating temperature ranges from -40 to +55 °C
(-40 to +131 °F).
2. DB-9 Male RS-232 Connector: This standard DB-9 male serial communications
connector, housed in a small connection box, allows the easy connection of an
external PC.
3. USB Computer Port Connector, Type B: This standard USB (type-B) female serial
communications connector allows easy connection to a PC.
4. Electronic Circuit Board: The circuit board incorporates all the electronic functions
of the H201Ci-C: Isolated supervisory link supply, communication ports and
modem (optional) management, enclosure heater control, and AC supply voltage
selector.
5. Main Terminal Block: The AC power supply, the supervisory link cables and the
RS-485 LAN are connected to this 40-screw terminal block. For wiring details, see
Table D - 8 in Appendix D.
Voltage of 115 or 230VAC is present on several connecting
screws of this terminal block.
6. Perforated Openings: Six perforated openings are present in the bottom plate of
the cabinet for wiring purposes. Three holes have a 0.75-in diameter and three
holes have a 0.5-in diameter.
WARNING