User guide

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NTGX10 — The NTGX10AA Bus Controller Main card provides system
clocks and acts as the bus master for the MSM.
NTGX11 — The NTG08AA Bus Controller Transition Module Paddle
Board can be found in the rear of the MSM shelves.
NTGX12 — The NTGX12AA VP12 voice channel cards on an MSM pro-
vide a maximum of 24 channels for each SPN, or 12 channels for each
voice processor card. The cards provide the channels for a maximum of
four SPNs to an NTGX0201 electronics shelf.
NTGX13 — This is a 600MB disk card that can be used in a MSM.
NTGX14
— The NTGX14AA is a 1200MB disk card and the
NTGX14BA is a dual 1200MB disk card used in a MSM.
NTGX15 — The NTGX15AA Disk Tape Module Assembly is used in the
primary disk shelf of the MSM.
NTLX02 — The processor element (PE) provides XA-Core with a com-
puting device that has fault detection and a spare PE. AA through AC is a
PPC604 256MB processor and the AD is a MPC7401 512MB processor.
NTLX03 — The input/output processor (IOP) for the XA-Core comes in
two versions: the NTLX03AA one-slot IOP for CMIC and RTIF packlets
and the NTLX03BA two-slot IOP for the 4MB disk drive packlet and DAT
tape drive packlet.
NTLX05 — The OC-3 two-port IF packlet provides the CMIC intercon-
nect between the Message Switch and XA-Core.
NTLX06 — Disk drive packlet for XA-Core (AA = 4GB; AB = 8.7GB).
NTLX07
— This is the digital audio tape (DAT) tape drive packlet.
NTLX08
— This is the RS232/RS422 remote terminal IF (RTIF).
NTLX09 — This is the Ethernet remote terminal IF (RTIF).
NTLX12 — The shelf interface module (SIM) provides the power for the
XA-Core. The packs are located on the back shelf.
NTLX44
— The Sync resource module (RM) provides the timing source
for the building internal timing source (BITS).
NTLX14 — This shared memory (SM) card provides the XA-Core with a
memory device for data store. The AA version is 128MB; BA is 256MB;
the CA is 384MB; and the DA is 512MB.
NTLX61 — This shelf interface module (SIM) is the DC power condi-
tioner for SPM NTLX51AA dual-shelf assembly.
NTLX63 — The common equipment module (CEM), located in the SPM,
provides centralized resources—bandwidth allocation, communica-
tion/messaging, computing platform, synchronization, etc.
NTLX65
— The digital signal processor (DSP) resource module (RM)
provides digital signal processing services for the SPM.
NTLX66 — The voice signal processor (VSP) resource module (RM) pro-
vides resources for call processing such as echo cancellation for the SPM.
NTLX71
— This OC-3 interface module is a synchronous optical network
(SONET) OC-3 trunk interface for the SPM. It allows the SPM to termi-
nate SONET OC-3 transmission systems carrying DS3, asynchronous
VT1.5, and byte-synchronous VT1.5 payloads.
NTL73 — The asychronous transfer mode (ATM) resource module (RM)
provides ATM digital signal processing services for the SPM.
NTLX74 — The synchronous transport signal (STS) resource module
(RM) provides synchronous transport signal-level one (STS-1) digital sig-
nal processing services for the SPM.
NTLX82 — This common equipment module (CEM), located in the SPM,
is an enhanced replacement for the NTLX63AA CEM.
NTMX72 — A power converter provides +5 V, +12 V, –12 V power for
the RCC2 and GPP CPM shelves. The NTMX72AA pack has test points, a
reset switch, and power fail LED while the NTMX73AB has only a fail and
active LED.
NTMX73 — This pulse code modulation (PCM) signaling pack controls
all low-level PCM and DS1 signaling tasks, and it generates the system
clock. The PCM and DS1 signaling tasks include link maintenance, receiv-
ing and sending derived data link (DDL), and receiving and sending ABCD
bits. It supports DS1 and PCM30 trunks on both the core side (C-side) and
the peripheral side (P-side). This pack replaces the 6X28, 6X41, 6X44, and
6X86 packs, either partially or totally.
NTMX74 — The principal function of this DS30 interface pack is to con-
vert data that come from the matrix in DS60 format into balanced DS30A
format, and to convert balanced DS30A signals into DS60 format for the
matrix. See the RCC2 shelf in this QRG.
NTMX75 — This enhanced matrix pack performs all speech channel
switching functions for the RCC2 and GPP CPM shelves. Those functions
include: providing digital connections between all C- and P-side channels,
moving ABCD bits from the DS1 ports to the SIGP pack, supporting the
parallel buses for service circuits, selecting C-side input and output links
and channels, and selecting P-side link connections. The DA pack version
is needed for the 16 to 20 C-side DS1 upgrade for the RCC2.
NTMX76 — This message and tone generator card provides DMSX and
HDLC messaging capability, and tone generation for DMS-100