Second-Generation Channel Interface Processor (CIP2) Installation and Configuration 31
Installation
Step 2
Attach the PCA connector of the Y cable to the PCA. (See Figure 17.)
Figure 17
Connecting or Removing the Y Cable
Step 3
Attach the female (light-gray) end of the Y cable (see Figure 18a) to the male (dark gray or
black) end of the VB cable (that goes to the next control unit).
If the PCA is the last control unit on the channel, attach a terminator to the female end of
the Y cable. (See Figure 18b.) Do not attach a VB cable.
Note
If the PCA is the last control unit, channel termination is absolutely required to loop signals
back to the host.
Caution
To prevent potential system problems, do not connect the VB cable directly to the PCA.
You must connect the Y cable to the PCA, then connect the VB cable to the Y cables as appropriate.
Figure 18
Connecting the VB Cable Between the Y Cable and the Next Control Unit
0
Single PCA
1
H2450
PCA connector
From host or mainframe
(male, dark gray or black)
To next control
unit or terminator
(female, light gray)
Bus
Tag
H2452
Light gray
To next control unit
Light gray
plastic end
Dark gray or black
Female
Male
b
Terminator
a
VB cable
Y cable
