
Hardware installation: Intelligent Peripheral Equipment module 4-41
Meridian MAX
Installation Guide
Product release 8
NT1R03AA/NT1R03BA four-port I/O cable
The NT1R03AA and NT1R03BA four-port I/O cables connect the
Meridian MAX IPE/IPE-E module with each peripheral in the system. The
NT1R03BA cable has a single 50-pin key telephone connector at one end,
and four female DB-25 connectors at the other end, as shown in Figure
4-15. The NT1R03AA also has an additional port reserved for the LAN
connection, as shown in Figure 4-14. The 50-pin key telephone connector
connects to the DB-25 socket of an NT1R03CA extension cable that is
connected at the base of the Option 11. The 50-pin key telephone connector
can also connect to the Meridian MAX IPE/IPE-E module breakout panel
at the rear of the Option 21–81 (see Figures 4-14 and 4-15). Each of the
three DB-25 plugs at the other end are connected to a peripheral device.
Refer to the correct port assignment chart when connecting peripherals to
cables.
The RS-232 straight-through cable with male DB-25 connectors seen in
Figures 4-11, 4-12, and 4-13 can extend the range between a Meridian
MAX IPE/IPE-E and a peripheral device. The distance between a
peripheral RS-232 device and an Option 11 or Option 21–81 must not
exceed 15 meters (50 feet).
Table 4-13 is the wiring table for the NT1R03AA four-port I/O cable with
the additional Ethernet connector. Table 4-14 is the wiring table for the
NT1R03BA four-port I/O cable. Note that all of the pins listed in the
FROM column represent pins in the 50-pin key telephone connector which
connects to the Meridian MAX IPE/IPE-E module. Pins listed in the TO
column are pins in the DB-25 sockets for the cables listed in the CABLE
column.
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