User guide

96
Integrated Services Module (ISM) shelf (NTFX4101)
The ISM is a single shelf unit that replaces the existing TM or MTM
shelves. The ISM shelf is mounted on either the cabinetized ISM (CISM),
the frame ISM (ISME), the cabinetized metallic test access (CMTA), or the
metallic test access equipment (MTAE).
Note: There are 90 or more optional service circuits. See the
PLN-8991-103, Engineering Manuals (No longer provided) for slot
assignments and other provisioning information. Also, see the ISM
NTFX44/NT2X90 assignment information below.
Note: For further description of the following ISM packs, see the “Circuit
Pack Description” within this QRG or see NTP 297-8991-805.
NTFX42
— ISM Processor Card
NTFX43
— ISM DC Converter
Input Output Module (IOM) (Located in ISM shelf)
(NTP 297-1001-591, Input/Output Devices Maintenance Manual)
The input/output module (IOM) is a direct replacement for the IOC shelf.
The IOM provides all the functionality of the current IOC cards, with the
exception of the NT6X91. The IOM with a digital audio tape (DAT) and a
disk drive unit (DDU) replaces the IOC DDU and magnetic tape drive
(MTD). The IOM occupies 3 shelf slots within the ISM shelf. If a DAT is
not required, the IOM controller cards provide 9-track MTD support.
NTFX30 — IOM Controller Card (located in slot 3 of the ISM shelf)
NTFX31
— IOM Paddle Board (located in slot 3 in the back of ISM shelf)
NTFX32 — IOM Storage Media Card (located in slot 4 of the ISM shelf)
NTFX32BA — DDU Plug-in Unit
NTFX32CA
— DAT Plug-in Unit
NTFX32DA
— Storage Media Filler Plug-in Unit
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NTFX31
Paddleboard
at slot 3
(Plugs into back
of Main Board)
Note: Minimum IOM Requirement is
4 packs + 2 Paddleboards
NTFX32
Storage
Media
Card
in slot 4
Note: A SCSI Cable is
connected between the
NTFX31 Paddleboard
and Storage Media Card
NTFX30
Main
Controller
Board
in slot 3