
Hardware installation: Intelligent Peripheral Equipment module 4-33
Meridian MAX
Installation Guide
Product release 8
Cabling Option 11 and Option 21–81 to peripherals through
a main distribution frame
Peripheral devices do not always have to be connected directly to the
Option 11 or Option 21–81. They can also be connected through a main
distribution frame (MDF).
ATTENTION
RS-232 cables that directly connect peripherals to the Meridian
MAX must not exceed 15 meters (50 feet).
This length is based on an EIA RS-232C standard. Peripherals can
be farther away if self-powered limited-distance (own power
supply), or dial-up modems are used.
ATTENTION
Cable connections between the LAN and the Meridian MAX must
not exceed 50 meters (164 feet).
This connection is an IEEE standard 802.3.
To connect peripheral devices to an Option 11 or an Option 21-81 through
an MDF, a 50-pin to 50-pin NT1R03Fx cable is used for ports 1, 3, 5, and
7, while a 50-pin to 50-pin NT1R03Gx cable is used for ports 2, 4, 6, and 8,
where x denotes the length of the cable. Connect one end of each cable to
the configured ports on the I/O connector panel of the Option 11 or the I/O
panels on the Option 21–81.
Connect the other ends to the 50-pin connectors on the customer-provided
shielded MDF.
The peripheral devices should be defined on the MDF at this point. The
technician can use the NT1R03AA and NT1R03BA pin-out information in
Tables 4-13 and 4-14 to wire the Option 11 or Option 21–81 to each
peripheral device through the cross
-connect panel.
The technician then connects each individual wire through the
cross-connect panel directly to the correct peripheral device using the
NT1R03AA and NT1R03BA pin-out information in Tables 4-13 and 4-14.
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