Section 10-427-100
Revision 04
Page
9 of 16
6.03 CPE Current Options for Older Remotes.
Set the switches on switch banks A and B on the unit's
backplane (see Figure 4 on page 8) as follows:
♦
Set the appropriate switches on banks A and B to OFF (down) to turn off the CI current. This is the
factory setting. Note that these current sources are limited to a 30-volt maximum output level and
as such cannot power some CSUs, which require 60 mA at 60V. However, the 30V output level is
more than adequate to power all external “smart-jacks” (NIU).
♦
Set the appropriate switches on bank A to ON (up) and on bank B to OFF (down) to provide 23 mA
simplex current (sealing current) feed to the CI. This connects pin 32 to 34 on the card edge
connector.
♦
Set the appropriate switches on banks A and B to ON (up) to provide 60 mA current to the CI. This
connects pins 31 to 33 (in addition to 32 to 34).
