Instruction manual
ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
2-34 Installation Revised Feb-2013
Pin Description
7 Not connected
8 Not connected
Note: You can swap TX and RX at the hub.
You can connect two nodes in a point-to-point configuration without
using a hub. However, you must configure the cable so that the TX+/-
Data pins connect to the RX+/- Data pins (swapped) at the opposite
ends of the cable (see Figure 2-23).
Figure 2-23. Point-to-Point 10/100Base T Ethernet Cable
The maximum length of one segment (CPU to hub) is 100 meters (328
feet). The use of Category 5 shielded cable is recommended.
2.10 Radio-Ready and Case Mounted Modem or Radio
The ControlWave GFC Plus ships from the factory with a user selected
radio or modem installed within the enclosure (in front of the battery
mounting bracket) or as a radio-ready unit, in other words, ready for
field installation of a factory-supplied radio. The installer must ensure
that the remote antenna (associated with a case mounted radio) is
properly installed and connected.
See the ControlWave Radio-Ready Installation Guide (D5138) for
information on installing factory-supplied radios in the field.
See the ControlWave PSTN Modem Installation Guide (D301734X012)
for information on installing the 9600 bps PSTN modem.