Technical Highlights: Tributary Interfaces • 4 x 10/100Base-T Ethernet Interfaces • Up to 2 x Voice Frequency ports supporting 2/4-Wire VF with E&M signaling • Up to 4 x RS232 serial data ports • Has integrated high performance Ethernet layer 2 switch fabric with 802.1p/q VLAN capabilities • Supports both VLAN access ports as well as trunk ports • Supports synchronous and asynchronous operation • Offers Terminal Server and Reverse Terminal Server operation for each serial port • Supports bit shaving for error free continuous serial data stream operation • Transports VF interfaces transparently using circuit emulation • Transports Serial interfaces synchronously using circuit emulation (64kbps over sampling) or packetized using UDP/IP • Has analogue and digital summing capabilities for point to multi-point application support High MTBF • High operating temperature

Customer Interfaces
Ethernet	4x 10/100Base-T (RJ45) (Switched)
Voice	2/4W with E&M signalling
Serial	RS232 / V.11 / X.21

Network Parameters
	VF	Serial
Transmission Protocol	UDP	UDP
Re-transmission Capability	No	Yes
Tolerable Delay*	NA	1 sec
Tolerable Packet Jitter	100ms	NA
Required Network Bandwidth	<100kbps per VF channel	Speed dependent

Serial Interface Parameters
Async Speeds	1200, 2400, 4800, 9600, 19200
Sync Speeds	64000
Operating Modes	Port To Port/Socket Tunnel Mode, Reverse Terminal
Control Signal Support	RTS to CTS
Packet Forwarding Mechanisms	Quiet Period, Delimiter(s), Packet Size, Constant Rate
Rate Adaptation (async mode)	V.14 concepts

Management
Local	CLI via Console
Remote	Telnet, SNMP, Web Server
Security	Dedicated VLAN, Password Protection Management ACL

Power
Power Supply	-20 to -72 VDC Power Supply
Power Consumption	10w (* AC power option provide using external plug pack.)

Terminal Server Application

The TS4220 provides 2 x VF (voice frequency) interface ports that are used to connect VF interface devices over an Ethernet or IP network.

 

The TS4220 can be used to meet a variety of VF connectivity applications including VF Audio and legacy V.23 data services.

Each VF port can be configured to operate in two wire (2W) or four wire (4W) mode for the voice frequency audio signals. Each port also provides support for E&M signalling leads.

 

The VF audio ports are balanced 600W transformer coupled interfaces. Being transformer coupled the TS4220 provides an isolation barrier between the TS4220 VF ports and any connected VF device.

 

Some typical applications include connecting remote UHF/VHF or microwave radio sites over an IP WAN in an emergency services environment. Another application is connecting remote telemetry unit to a central head end master site in a utility SCADA application.

 

Each VF port can be independently configured to communicate with another remote VF port in a point-to-point network topology.

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Avalable Models
Order Number	Description
P21031.03	TS4220 4xETH, 2xVF, 2xSerial, Terminal Server, Stand-alone Mechanics

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