Avaya Cajun P880 Manager 5.1, Руководство по установке, Страница: 38 / 62

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Chapter 2
Cajun P550R/P880/P882 Switch Installation Guide
CAUTION
To avoid personal injury or equipment damage, do not use
the standard crossover adapter, part number CUS-41-1146,
to connect the Annex Cat 5 cable to the supervisor module
when you are connecting a MicroAnnex communications
server to a Cajun Switch supervisor module (especially the
P880 supervisor module). A short between two serial
handshake options may exist (the severity depends on the
the actual levels of the outputs). Shorting these handshake
lines on the transceiver (part number Maxim MAX3243E)
used on the P880 supervisor module causes the device to
oscillate in and out of device shutdown. This affects serial
data transmission and may also cause permanent damage to
the transceivers on the supervisor module and the attached
device. Avaya recommends you heed the following rules for
connecting the Annex Cat 5 cable.
■
When connecting an Annex device to a DCE device (i.e.,
PC), use only the CUS-41-1145 crossover cable.
■
When connecting an Annex box to the P550R/P880/P882
switch supervisor module, use an adapter with the pin
assignments listed in Table 2-2:
■
Do not use the CUS-41-1146 crossover adapter to connect
a modem (or other DCE device) to a supervisor module
■
Do not connect a supervisor module to a DCE device with
a straight through cable or adapter. The DCE output data
carrier detect (DCD) is not connected on the supervisor
module.
Table 2-2. Adapter Pin Assignments
Pin Color Signal Pin Destination
1
Blue RTS
7
To DCE
2
Orange DTR
4
To DCE
3
Black TD
3
To DCE
4
Red DCD
1
To DTE
5
Green RD
2
To DTE
6
Yellow GND
5
7
Brown DSR
6
To DTE
8
White/Gray CTS
8
To DTE