T1 MUX VF 4-Wire E&M

Overview & Applications

Voice with E&M Signaling Multiplexed onto T1 Wide Area Networks
The T1 MUX E&M has One, two, three, or four E&M balanced 4-Wire 600 ohm Voice Frequency interfaces with Push to Talk Relay transfer signaling that are multiplexed onto a T1 WAN interface.

Interconnect 600Ω analog, audio and intercom devices such as Radio Wireline, FSK modems, E&M, teleprotection relay controllers, etc. and dry contacts over T1 links.

The T1 MUX E&M employs high resolution Analog to Digital circuitry that maintains the quality of the original audio signal. The PCM CODEC converts 600 Ohm Analog Voice Band into Pulse Code Modulated m-Law G.711.

IP Tube VF 4 wire T1 MUX EM Diagram1

Public Safety Radio Tower Wireline Audio over T1 WANs
A primary application for the T1 MUX E&M is the conversion of Voice Grade E&M circuit interfaces with Push to Talk, that connect Public Safety Radio Base Stations to concentrator hubs.

4-Wire leased line analog networks interconnect VoiceBand Communications for Utilities Municipalities and Public Safety Agencies.

IP Tube VF 4 wire T1 MUX EM Diagram2

Technical Specifications

Technical Specifications

Management:
• Secure Socket Shell - SSH V2 - Session Encryption
• Centralized Authentication, Authorization and Accounting- TACACS+, RADIUS, Two Factor Authentication
• Syslog with NTP Time Stamping
• Console Port for Out of Band Management

Dimensions:
• Dimensions: 9" (L) x 7.3” (W) x 1.50” (H)

Regulatory:
• CE
• Safety -IEC60950
• EMC - CFR 47 Part 15 Sub Part B:2002,
• EN55022:1994+A1&A2, EN55024,
ICES-003 1997, CISPR 22 Level A

Environmental:
• (-10°C - 60°C) operating temperature
• Up to 90% operating humidity (non-condensing)

Rear Panel/Power:
• 12-30 VDC, 1.0A.
• Screw Locking Connector
• Universal Adapter 100/240 VAC 50/60 Hz
• Optional -48V 0.25 Amp
• Hot Standby

E&M Interface(s):

• 1, 2, 3 or 4: E&M 4-Wire Full Duplex Voice;
• 600 Ohm Balanced
• Frequency 200 to 3400 Hertz
• CoDec: G711; uLaw
• Signalization E&M Type I/II/III/IV/V

Dry Contact:
• 1 to 4 Normally Open1 to 4 Normally Open
• Optically Coupled
• PTT Relay Support

Terminal Interface
• RJ45 RS232 DTE: Console Port for Management

LAN Network Interface:
• LAN1 10/100 Base T

LAN Network Protocols Supported:
• DIP, TCP, UDP, ICMP, Telnet, DHCP, DDNS, SSH
• SNMP V3 Public and Private MIB with configured traps

T1 Multiplexor: 600 Ohm Analog Voice Frequency Channels with PTT

Overview & Applications

Technical Specifications

Data Sheet Download

How to Order

Engage Communication Product Inquiry