Emerson Process Management Bristol ControlWave ExpressPAC - Manual (Page 43)

ControlWave ExpressPAC Instruction Manual (CI-ControlWave EPAC)
Revised Mar-2011 Installation 2-29
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 2-18).
Figure 2-18. 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.
2.4 Radios and Modems
ControlWave ExpressPAC supports several different third-party
radios/modems. You can:
 order ControlWave ExpressPAC with the radio/modem factory
installed within the enclosure (in front of the battery mounting
bracket)
 order the unit without a radio/modem and then order the supported
radio/modem from Emerson separately, and install it yourself. This
option is called “radio-ready.” If you choose to install it yourself,
you must ensure that the remote antenna (associated with a case-
mounted radio) is properly installed and connected.
For information on configuring the third party radio/modem, see the
documentation from the manufacturer.
For information on installing a radio in a radio-ready unit, see the
ControlWave Radio Ready Installation Guide (D5138).
2.5 Optional Display/Keypads
The ControlWave ExpressPAC supports two optional display/keypads
and a display without a keypad:
 A 2-button keypad (shown in the left of Figure 2-19)
 A 25-button keypad (shown in the right Figure 2-19)