Honeywell WEB/CP-202-XPR Installation Instructions Manual page 21

NOTES:
1. An additional serial port may be added with an option card in Option Slot 1, such as an NPB-RS232 card (port oper-
ates as COM7) or NPB-2X-RS485 card—note this option actually adds two serial ports, which operate in the control-
ler as COM7 and COM8.
2. If a dialup modem option card (NPB-MDM) is installed, this effectively disables the onboard RS-232 port, and the
modem operates as COM1. Note that this option card is not supported if the controller is equipped with the
onboard GPRS modem.
RS-232
RS-232 serial port connections can be made to the female (socket) RJ-45 connectors using an 8-conductor flat "silver satin"
stranded cable with standard male (plug) RJ-45 connectors. Connect the flat satin cable (maximum distance 50 feet) through the
enclosure knockout nearest the port. This "straight-through" cable is then connected to a socket-to-socket type RJ-45 to DB-9
adapter.
The controller is a serial DTE device, such another DTE device (PC, for example) requires a "null modem" adapter (part number
H10148, optional item). If connecting the controller to a DCE device (modem, for example), a straight-through adapter may be
used. Table 3 on page 21 provides pinouts for both types of RJ-45 to DB-9 adapters.
NOTES:
1. Silver satin cable is not standard Ethernet UTP cable, in which the pairs are twisted around each other. The twisting
of the pairs may cause undesirable effects on the serial communication, therefore we recommend the use of flat sil-
ver satin cable instead. Note that flat silver satin cable is unshielded. If installing this cable in a noisy electrical envi-
ronment, run the cable through conduit.
2. If you need a temporary serial shell connection from your PC to the controller, and you have the necessary RJ-45 to
DB-9 null modem adapter (part number H10148), but you have no silver satin cable, you can substitute an ordinary
Ethernet patch cable. However, using silver satin cable is recommended for any permanent RS-232 connection, for
reasons mentioned above.
3. If rebooted with the mode jumper in the "Serial Shell" position (see Fig. 6 on page 11), the RS-232 port provides
"system shell" access. See the JACE NiagaraAX Install and Startup Guide for related details about system shell.
Note that if a dialup modem option card (NPB-MDM) is installed, this modem is disabled during this "serial shell"
access. NPB-MDM operation resumes only after putting the mode jumper back to the "Normal" position, and then
rebooting the controller.
RJ-45 and DB-9
Pinout References
RJ-45 SOCKET (FEMALE)
8 1
DB-9 SOCKET (FEMALE)
5 1
9 6
M28878
Table 3. RJ-45 to DB-9 adapter pinouts.
Type of Adapter
Null Modem
(for connecting to
another DTE device)
Part number 10148
Straight-through
(for connecting to
a DCE device)
WEB/CP-202-XPR AND WEB/CP-602-XPR CONTROLLERS
RJ-45
Socket Pin
5 DCD
3 TXD
6 RXD
8 DSR
4 GND
1 DTR
7 CTS
2 RTS
— not used on the controller
5 DCD
6 RXD
3 TXD
1 DTR
4 GND
8 DSR
2 RTS
7 CTS
— not used on the controller
21
Signal
Data carrier detect
Transmit data
Receive data
Data set ready
Ground
Data terminal ready
Clear to send
Request to send
Data carrier detect
Receive data
Transmit data
Data terminal ready
Ground
Data set ready
Request to send
Clear to send
DB-9
Socket Pin
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
95-7775—01