User guide

95
Maintenance Trunk Module (MTM) shelf (NT2X58)
Note: For further description of the following MTM packs, see the “Cir-
cuit Pack Description” within this QRG or see NTP 297-8991-805.
0X70 — Processor 2X53 — Control
2X06 — Power Converter 2X59 — CODEC
2X09
— Power Converter
2X70
— Power Converter
2X45 — MTM Interface 4X65 — Control
Examples of Optional Maintenance Cards
1X00
— 102 Milliwatt Test Trunk;
1X00AE
— International Version
1X31 — Conference Circuit
1X80
— EDRAM (post as DTM at PM MAP level) (see note below)
1X80 — International EDRAM (post as DTM at PM level of MAP)
Note: The 1X80 is a digital trunk module (DTM) with its own ports to
the network. The power comes from the host MTM.
Note:
See NTP 297-1001-527 for the following EDRAM procedures:
• Recording custom announcements on EDRAM
• Reloading factory-produced voice files to EDRAM
• Uploading EDRAM files to a storage device
• Reloading custom announcements to EDRAM
1X81 — Compact Conference
1X90 — TTT Test Signal Generator
2X11 —LTU Digital Card
2X43
— Office Alarm Circuit #3
2X48AB — Digital 4-channel DGT Receiver (2X48BB for ESA Digitone)
2X50 — Horizontal/Vertical TAN Driver
2X66 — CAMA Suspension and Calls Waiting Loop or E&M
2X71 — Transmission Terminating Trunk
2X96
— TTT PCM Level Meter (Level & Frequency)
3X09
— Remote Metallic Test
5X30
— 101 Communication Test Line Circuit
TOPS Digital Modem located within slots 5 thru 16
3X02
— Even MTM slot: Digital Signal Processor
3X03 — Odd MTM slot: Control Processor (stand-alone)
Remote Maintenance Module (RMM) shelf
Note: For further description of the following RMM packs, see the “Cir-
cuit Pack Description” or the OPAC and OPM hardware within
this QRG. Also, see NTP 297-8991-805.
2X06 — Power Converter 2X59 — Group CODEC
2X09 — Power Converter 6X60 — RLCM/OPM Ringing Generator
6X47 —ESA Memory 6X74 — RMM Control Card
6X50 — DS1 Interface
RMM Optional Cards
2X90 — Test Trunk Card (VER90, NOTEST, REPAIR, MONTALK)
2X10 — MTU Analog (Odd slot)
2X11 — MTU Digital (Next adjacent slot)
2X48 — Digitone Receiver (2X48BB for ESA Digitone calls)
3X09 — Remote Metallic Test Access
0X10 —Scan Card
2X57 — Signalling Distribution (SD) Card
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