Connect Tech NT960/PCI - Manual (Page 42)

2-12 Chapter 2: Hardware Installation
Intellicon-NT960/PCI User's Manual, ver. 0.02
Note:
The ACM/Flex16 with RS-232 and/or 20mA interfaces only
requires the connection of one external power supply for every
48 ports connected to a HOST Adapter.
The ACM/Flex16 with RS-485 only or a combination of RS-232
and RS-485 and 20mA Current Loop interfaces requires the
connection of one external power supply for every 32 ports
connected to a HOST Adapter.
Please connect the power supply to the POWER IN connector on
the first ACM/Flex16 (or ACM/16/16RJ) module (16 ports) and
then connect power cables between the POWER OUT and the
POWER IN connectors on the ACM/16, ACM/16RJ and
ACM/Flex16 modules.
When you add another ACM/Flex16 or ACM/16 or ACM/16RJ
module to bring the total to 48 ports you must connect another
external NT960 power supply to the POWER IN connector on
this additional ACM/Flex16, ACM/16 or ACM/16RJ module. If
you add another 16 ports to bring the total to 64 ports you can
once again connect power cables between the POWER OUT and
POWER IN connectors on the ACM/Flex16, ACM/16 or
ACM/16RJ modules. Please refer to Figures 11, 12 and 13 for
connecting multiple ACM/16/16RJ/ modules.
6. Turn on or connect the power to your host computer.
WARNING
1. When connecting or disconnecting an ACM/16, ACM/16RJ
or ACM/Flex16 to a NT960/PCI Host Adapter or to another
ACM/16, ACM/16RJ or ACM/Flex16 module, you must turn
off or disconnect the computer's power supply and the
power supply to the ACM/16, ACM/16RJ or ACM/Flex16
module(s). Failure to observe this precaution will result in
damage to the NT960/PCI Host Adapter, ACM/16,
ACM/16RJ or ACM/Flex16.
2. You can connect only ACM/16, ACM/16RJ or ACM/Flex16
modules to a NT960/PCI Host Adapter or to another
ACM/16, ACM/16RJ or ACM/Flex16 module. Failure to
observe this precaution will result in damage to the
NT960/PCI Host Adapter, ACM/16, ACM/16RJ or
ACM/Flex16.