User guide

103
Small Remote Unit (SRU) (NT8X95) (MD)
The international small remote unit (SRU) is a DMS-100 remote peripheral
module (PM) that provides access for a maximum of 240 subscriber lines.
It is located at a remote site up to 240 km (150 miles) from the host
DMS-100. The SRU communicates with the host DMS-100 through pulse
code modulation 30 (PCM30) links and provides a variety of services,
including plain ordinary telephone service (POTS) and Centrex.
Notes:
For further description of the following SRU packs, see the “Cir-
cuit Pack Description” within this QRG or see NTP 297-8361-550, Outside
Plant Module Maintenance Manual or the NTP 297-8991-104 Provision-
ing Manuals.
0X10 —Scan Card 6X73 — PCM30 Link Control
2X59 — Codec Group Card 6X74 — RMM Controller
3X09 — Metallic Test Access Card BX34 — SRU Processor
4X97 — Metallic Test Unit (Analog) BX35 — Digroup Controller Card
4X98 — Metallic Test Unit (Digital) 8X03 — Battery Charging Unit
6X27 — PCM30 Interface Card (Located on back of unit)
6X60EA — Ringing Gen. (Australian) 8X99 — +5V Power Converter
6X60GA — Ringing Generator (U.K.)
Battery
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Unit 1