Instruction manual
Table Of Contents
- Contents
- Introduction
- Strata CTX28 Overview 1
- Strata CTX100-S / CTX100 Overview 2
- Strata CTX670 Overview 3
- Capacities 4
- Universal Slot Circuit Cards 5
- Telephones and Peripherals 6
- Features 7
- Account Codes
- Add-on Module (DADM)
- Advisory Messages
- Alternate Answer Point
- Automatic Busy Redial
- Automatic Call Distribution (ACD) Server
- Automatic Callback (ACB)
- Automatic Line Selection
- Automatic Release
- Background Music (BGM)
- Call Completion
- Call Forward
- Call History
- Call Park
- Call Pickup
- Call Waiting
- Caller Identification
- Camp on Busy
- Cancel Button
- Centrex/PBX Compatible
- Centrex Ringing Repeat
- Classes of Service (COS)
- Computer Telephony Integration (CTI)
- Conference Calls
- Continuous DTMF Tone
- Credit Card Calling
- CTX WinAdmin
- Data Privacy
- Day/Night Mode - Auto Schedule
- Delayed Ringing
- Destination (Toll) Restriction
- Direct Inward Dialing (DID)
- Dialed Number Identification Service (DNIS)
- Digital Pad
- Direct Inward System Access (DISA)
- Directory Numbers
- Distinctive LED Indicator
- Distinctive Ringing
- Do Not Disturb (DND)
- Direct Station Selection (DSS) Buttons
- DTMF Receivers
- Emergency Call
- Feature Prompting with Soft Keys
- Enhanced E911
- External Amplified Speaker
- Flash Button
- Flexible Line Ringing
- Flexible Numbering
- Handsfree Answerback
- Headset
- Hearing Aid Compatible
- High Call Volume Buttons
- Hold
- Hot Dialing
- Hotline Service
- IP Telephony
- Private Networking Over Internet Protocol
- Integrated Services Digital Network (ISDN)
- Least Cost Routing (LCR)
- Line Buttons
- Live System Programming
- Lost Call Treatment
- Message Waiting
- Microphone (External Unit)
- Music-on-hold
- Multiple Call/Delayed Ringing
- Off-Hook Call Announce (OCA)
- Off-Premise Stations
- Override
- Paging
- Power Failure Protection
- Privacy
- Repeat Last Number Dialed
- Ringing
- Speed Dial
- Station Hunting
- Station Message Detail Recording (SMDR)
- Strata Net Multi-system Networking
- System Fault Finding and Diagnostics
- Transfer
- Tenant Services
- User Programming Mode
- Voice or Tone Signaling
- Voice Mail Integration
- Volume Control
- Appendix - Specifications
- Index

Strata CTX670 Overview
CTX670 Remote Expansion Cabinet
Strata CTX General Description 10/04 19
CTX670 Remote Expansion Cabinet
A CTX670 Expansion Cabinet can be located up to three kilometers (1.86 miles) from its Base
Cabinet. Remote Expansion Cabinets are enabled by the RRCU circuit card. One RRCU connects
to up to two ribbon-type Data Cables and applies the inter-cabinet signal to a multi-mode fiber-
optic pair. One fiber pair can support one or two Expansion Cabinets in one remote location using
one RRCU in the Base Cabinet and another in the Remote Expansion Cabinet.
The CTX670 Base Cabinet supports up to six Remote Expansion Cabinets (at least one RRCU
circuit card is required for each remote location).
Remote Cabinets support the BIOU for external Page Zones, Night Bell, etc., and all CO line and
trunk interface circuit cards. Network clock synchronization can only be derived from digital
trunks installed in the Base Cabinet (Master) location.
A Remote Cabinet can support all circuit cards that can be installed in a local Expansion Cabinet,
including digital trunk cards. However, the system cannot derive network clock synchronization
from a digital trunk installed in a Remote Cabinet. This requires a digital trunk installed in the
Base Cabinet or in a local Expansion Cabinet connected to the Base by a standard ribbon cable.
For each Remote Cabinet location, local trunks may be required for correct 911 service.