IOLAN SDSC Terminal Server
NERC CIP Electric Utility Terminal Server
IOLAN SDSC16 HV Terminal Server
- 8, 16 and 32 serial ports on RJ45 - software selectable RS232/422/485
- Advanced security features for NERC CIP critical cyberasset substation compliance
- Substation hardened for harsh electrical utility and industrial applications
- Universal high voltage power supply: nominal 125v DC / 250v DC or 115v AC / 230v AC
- Dual Feed low voltage power supply: nominal 24v DC /48v DC
- Dual 10/100/1000 Ethernet with Redundant Path Technology
- Built-in failsafe alarm relay
Electrical utility engineers and project managers that require a cost effective serial-to-Ethernet solution to help meet NERC-CIP compliance for the protection of critical cyberassets in substations must consider the IOLAN SDS HV/LDC Terminal Server. In addition to the most extensive security features available, these IOLAN’s are designed to meet harsh environments associated with Power Substations with attributes such as support for substation AC and DC voltage ranges, extended operating temperatures and meeting emission, immunity and safety approvals associated with substation IT equipment.
IOLAN SDSC Terminal Servers are ideal for:
- Electrical utility engineers and Project Managers requiring a high performance serial to Ethernet interface for serial RS232 or RS485 based devices such as SCADA based RTUs and protection relays.
- Environments that require a serial terminal server with unique environmental, form factor, or power inputs in harsh environments
- Substation Automation projects where using secured communications in remote connections is required.
Why IOLAN SDSC Terminal Servers are the preferred choice:
-
NERC CIP compliance features (EPCIP EU COM(2006)786);
- TACACS+, RADIUS for centralized authentication, authorization and accounting
- Support for alternate TACACS+ and RADIUS hosts
- Two factor strong authentication such as RSA’s SecureID
- HTTPS, SSL/TLS, SSH ( AES, 3DES ) session encryption
- Keystroke and data logging
- Provides the ability to display a customizable “Appropriate Use” login banner upon user access
- Secure dial-up
- Enable only the serial ports you need
- Meets IEC 61850-3 and IEEE 1613 ( IEEE C37 90 ) electrical substation EMI standards
- Universal High voltage: 88-300v DC or 85-265v AC – dual power models
- Dual Feed low voltage: 18 - 72v DC models
- Cisco RJ45 serial port pinout design enables connection to Cisco/Sun console ports using common serial “rolled” CAT5 cabling
- Encapsulate ModBus and DNP protocols over IP
- Modbus TCP to Modbus RTU/ASCII gateway
- High performance 400 Mhz, 750 MIPS, 32 bit processor with integrated hardware encryption processor for the best throughput on the market
- Next Generation IP support (IPv6 ) for investment protection and network compatibility
- TrueSerial™ packet technology – the most authentic serial connections across Ethernet ensures serial protocol integrity
- Primary/Backup host functionality enables automatic connections to alternate hosts should the primary TCP connection go down
- EasyPort Web – Access equipment serial console ports by using your java-enabled Internet browser
- TruePort – Perle’s com/tty redirector for serial based applications operates on Windows, Vista, Linux, Solaris, SCO and Unix
- Java-free browser access to remote serial console ports via Telnet and SSH
- Lifetime warranty – best investment protection available
Software Feature - IOLAN SDSC Terminal Servers
| Serial Port Access | |
|---|---|
| Connect directly using Telnet / SSH by port and IP address | |
| Connect with EasyPort menu by Telnet / SSH | |
| Use an internet browser to access with HTTP or secure HTTPS via EasyPort Web menu | |
| Java-free browser access to remote serial console ports via Telnet and SSH | |
| Ports can be assigned a specific IP address ( aliasing ) | |
| Multisession capability enables multiple users to access ports simultaneously | |
| Multihost access enables multiple hosts/servers to share serial ports | |
| Accessibility | |
| In-band ( Ethernet ) and out-of-band ( dial-up modem ) support | |
| Dynamic DNS enables users to find a console server from anywhere on the Internet | |
| Domain name control through DHCP option 81 | |
| IPV6 and IPV4 addressing support | |
| Availability | |
| Primary/Backup host functionality enables automatic connections to alternate host(s) | |
| Security | |
| SSH v1 and v2 | |
| PCI DSS Compliance: TLS v1.2, TLS v1.1, TLS v1.0, SSL v3.0, SSL v2.0 | |
| SSL Server and SSL client mode capability | |
| SSL Peer authentication | |
| IPSec VPN : NAT Traversal, ESP authentication protocol | |
| SSH ciphers: AES-CTR, AES-GCM and ChaCha20-poly1305 | |
| SSL encryption: AES-GCM, key exchange ECDH-ECDSA, HMAC SHA256, SHA384 | |
| Encryption: AES (256/192/128), 3DES, DES, Blowfish, CAST128, ARCFOUR(RC4), ARCTWO(RC2) | |
| Hashing Algorithms: MD5, SHA-1, RIPEMD160, SHA1-96, and MD5-96 | |
| Key exchange: RSA, EDH-RSA, EDH-DSS, ADH | |
| X.509 Certificate verification: RSA, DSA | |
| Certificate authority (CA) list | |
| Local database | |
| RADIUS Authentication, Authorization and Accounting | |
| TACACS+ Authentication, Authorization and Accounting | |
| LDAP, NIS, Kerberos Authentication | |
| RSA SecureID-agent or via RADIUS Authentication | |
| SNMP v3 Authentication and Encryption support | |
| IP Address filtering | |
| Disable unused daemons | |
| Active Directory via LDAP | |
| Terminal Server | |
| Telnet | |
| SSH v1 and v2 | |
| Rlogin | |
| Auto session login | |
| LPD, RCP printer | |
| MOTD - Message of the day | |
| Serial machine to Ethernet | |
| Tunnel raw serial data across Ethernet - clear or encrypted | |
| Raw serial data over TCP/IP | |
| Raw serial data over UDP | |
| Serial data control of packetized data | |
| Share serial ports with multiple hosts/servers | |
| Virtual modem simulates a modem connection - assign IP address by AT phone number | |
| Virtual modem data can be sent over the Ethernet link with or without SSL encryption | |
| TruePort com/tty redirector for serial based applications on Windows, Linux, Solaris, SCO, HP UX, NCR UNIX and AIX. For a complete list of all the latest drivers click here | |
| TrueSerial packet technology provides the most authentic serial connections across Ethernet ensuring serial protocol integrity | |
| RFC 2217 standard for transport of serial data and RS232 control signals | |
| Customizable or fixed serial baud rates | |
| Plug-ins allow customer or Perle provided plug-ins for special applications | |
| Software Development Kit ( SDK ) available | |
| Serial encapsulation of industrial protocols such as ModBus, DNP3 and IEC-870-5-101 | |
| ModBus TCP gateway enables serial Modbus ASCII/RTU device connection to ModBus TCP | |
| Data logging will store serial data received when no active TCP session and forward to network peer once session re-established - 32K bytes circular per port | |
| Console Management | |
| Sun / Oracle Solaris Break Safe | |
| Local port buffer viewing - 256K bytes per port | |
| External port buffering via NFS, encrypted NFS and Syslog | |
| Event notification | |
| Manage AC power of external equipment using Perle RPS power management products | |
| Clustering - central console server enables access ports across multiple console servers | |
| Windows Server 2003/2008 EMS - SAC support GUI access to text-based Special Administrative Console | |
| Remote Access | |
| Dial, direct serial | PPP, PAP/CHAP, SLIP |
| HTTP tunneling enables firewall-safe access to remote serial devices across the internet | |
| Automatic DNS Update | Utilize DHCP Opt 81 to set IOLAN domain name for easy name management and with Dynamic DNS support , users on the Internet can access the device server by name without having to know its IP address. See Automatic DNS update support for details |
| IPSEC VPN client/servers | Microsoft L2TP/IPSEC VPN client ( native to Windows XP) |
| Microsoft IPSEC VPN Client ( native to Windows Vista ) | |
| Cisco routers with IPSEC VPN feature set | |
| Perle IOLAN SDS/STS and SCS models | |
| OA&M ( Operations, Administration and Management ) | |
| SNMP V3 - read and write, Perle MIB | |
| Syslog | |
| Perle Device Manager - Windows based utility for large scale deployments | |
| Configurable default configuration | |
| Installation Wizard | |
| Set a Personalized Factory Default for your IOLANs | |
| Protocols | |
| IPv6, IPv4, TCP/IP, Reverse SSH, SSH, SSL, IPSec/IPv4, IPSec/IPv6, L2TP/IPSec, CIDR, RIPV2/MD5, ARP, RARP, UDP, UDP Multicast, ICMP, BOOTP, DHCP, TFTP, SFTP, SNTP, Telnet, raw, reverse Telnet, LPD, RCP, DNS, Dynamic DNS, WINS, HTTP, HTTPS, SMTP, SNMPV3, PPP, PAP/CHAP, SLIP, CSLIP, RFC2217, MSCHAP | |
Hardware Specifications - IOLAN SDSC HV Terminal Servers
| SDS8C HV | SDS8C DHV | SDS16C HV | SDS16C DHV | SDS32C HV | SDS32C DHV | |
|---|---|---|---|---|---|---|
| Processor | MPC8349E, 400 Mhz, 750 MIPS | |||||
| Memory | ||||||
| RAM MB | 64 | 64 | 64 | 64 | 128 | 128 |
| Flash MB | 16 | 16 | 16 | 16 | 16 | 16 |
| Interface Ports | ||||||
| Number of Serial Ports | 8 | 8 | 16 | 16 | 32 | 32 |
| Serial Port Interface | Software selectable RS232 / RS485 / RS422 DTE on RJ45 - RS485: full and half duplex | |||||
| Sun / Solaris | Sun / Oracle ‘Solaris' Safe - no "break signal" sent during power cycle causing costly server re-boots or downtime | |||||
| Serial Port Speeds | 50bps to 230Kbps with customizable baud rate support | |||||
| Data Bits | Configurable for 5,6,7 or 8-bit protocol support Use TruePort to transparently pass 9-bit serial data |
|||||
| Parity | Odd, Even, Mark, Space, None | |||||
| Flow Control | Hardware, Software, Both, None | |||||
| Local Console Port | RS232 on RJ45 with DB9 adapter (provided) | |||||
| Network | Dual 10/100/1000-base TX Ethernet RJ45 | |||||
| Software selectable Ethernet speed 10/100/1000, Auto | ||||||
| Software selectable Half/Full/Auto duplex | ||||||
| Failsafe Alarm Relay | 3A@24v DC. Normally open contacts closed by IOLAN when active and opened upon alarm condition or power failure | |||||
| Power | ||||||
| Dual Power Supply | Terminal Block with screw terminals accommodating a #6 ring terminal for each power source. Protective cover provided | |||||
| Nominal Input Voltage | 125V DC / 250V DC or 100V AC / 240V AC | |||||
| Input Voltage Range | 88-300V DC or 85-265V AC | |||||
| AC Input Frequency | 47-63Hz | |||||
| Current Consumption @ 125v DC (Amps) | 0.06 | 0.07 | 0.08 | 0.08 | 0.13 | 0.13 |
| Current Consumption @ 250v DC (Amps) | 0.04 | 0.04 | 0.05 | 0.05 | 0.07 | 0.07 |
| Current Consumption @ 115v AC (Amps) | 0.13 | 0.15 | 0.07 | 0.2 | 0.26 | 0.28 |
| Current Consumption @ 230v AC (Amps) | 0.09 | 0.11 | 0.12 | 0.14 | 0.16 | 0.19 |
| Typical Power Consumption (Watts) | 9 | 10 | 12 | 12.5 | 17 | 17.5 |
| Chassis Ground | Grounding screw for a #10 ring terminal | |||||
| Indicators | ||||||
| LEDs | Power | |||||
| System Ready | ||||||
| Network Link activity | ||||||
| Serial: Transmit and Receive data per port | ||||||
| Environmental Specifications | ||||||
| Heat Output (BTU/HR) | 30.7 | 34.12 | 40.9 | 42.7 | 58 | 59.7 |
| MTBF (Hours) | 144,323 | 126,121 | 117,779 | 105,368 | 89,711 | 82,325 |
| Calculation model based on MIL-HDBK-217-FN2 @ 30 °C | ||||||
| Operating Temperature | -40&C ambient for 16 hours and +70C ambient for 16 hours without use of fans | |||||
| Storage Temperature | -40&C to 85&C, -40&F to 185&F | |||||
| Humidity | 5 to 95% (non condensing) for both storage and operation. | |||||
| Case | SECC Zinc plated sheet metal (1 mm) | |||||
| Ingress Protection Rating | IP30 | |||||
| Mounting | 1U - 19" rack, front and rear mounting hardware included. DIN Rail mounting kit optional |
|||||
| Product Weight and Dimensions | ||||||
| Weight | 3.20 kg | 3.38 kg | 3.22 kg | 3.40 kg | 3.40 kg | 3.58 kg |
| Dimensions | 1U Rack form factor - 26.4 x 43.4 x 4.4 (cm), 10.38 x 17.1 x 1.75 (in) | |||||
| Packaging | ||||||
| Shipping Dimensions | 59 x 36 x 9 (cm), 23 x 14 x 3.5 (in) | |||||
| Shipping Weight | 4.00 kg | 4.18 kg | 4.20 kg | 4.20 kg | 4.20 kg | 4.38 kg |
| Regulatory Approvals | ||||||
| Emissions | Power Line conducted: IEC 61850-3 Sec 5.8, IEC 61000-6-4,
CISPR 16-2-3, CISPR 22, FCC Part 15, Subpart B, Class B |
|||||
| Telecom Line conducted: IEC 61000-6-4, CISPR 22 | ||||||
| Radiated: IEC 61850-3 Sec 5.8, IEC 61000-6-4, CISPR 16-2-3, CISPR 22, FCC Part 15, Subpart B, Class B | ||||||
| IEC61000-3-2 Harmonic Current Emissions | ||||||
| IEC61000-3-3 Flicker emissions | ||||||
| EMC Interface Immunity | IEC 61850-3 (substations) IEEE 1613 (substations) (C37.90.x) Applies to all ports, signal and power connections |
|||||
| ESD: IEC61000-4-2, 8Kv Contact / 15Kv Air | ||||||
| Radiated RFI: IEC61000-4-3, 20 V/m (80M-1G) | ||||||
| Fast Transients / Burst: IEC61000-4-4, 4Kv Mains , I/O | ||||||
| Surge : IEC61000-4-5 4Kv AC line to Gnd, 2Kv AC Line to Line, 2Kv DC line to Gnd, 1 Kv DC Line to Line, RS232 = balanced, ethernet = unbalanced |
||||||
| Conducted RF: IEC61000-4-6, 10 Vrms | ||||||
| Magnetic Field: IEC61000-4-8, 100 A/m, 1000 A/m (1 sec) | ||||||
| Dips and Interrupts: IEC61000-4-11, Criteria A/B/C | ||||||
| Oscillatory: EN61000-4-12, 2.5Kv common and differential mode | ||||||
| Low Frequency conducted: EN61000-4-16, 30V 60s, 300V 1s,15Hz-150KHz @ level 3 | ||||||
| Standard Safety Certifications | UL/EN/IEC 62368-1 CAN/CSA C22.2 No. 62368-1 |
|||||
| IEC 60950-1, First Edition (2001-10) and EN60950-1:2001, CB scheme. | ||||||
| CAN/CSA-C22.2 No. 60950-1-03 and ANSI/UL
60950-1, First Edition April 1st 2003 (Recognized Component) |
||||||
| Other | Reach, RoHS and WEEE Compliant | |||||
| CCATS - G168387 | ||||||
| ECCN - 5A992 | ||||||
| HTSUS Number: 8517.62.0020 | ||||||
| Perle Lifetime Warranty | ||||||
| IOLAN RJ45 Serial Connector Pinout | ||||||
|---|---|---|---|---|---|---|
RJ45 Socket |
Pinout | Direction | EIA-232 | EIA-422 | EIA-485 Full Duplex | EIA-485 Half Duplex |
| 1 | out | RTS | TxD+ | TxD+ | DATA+ | |
| 2 | out | DTR | ||||
| 3 | out | TxD | TxD- | TxD- | DATA- | |
| 4 | GND | GND | GND | GND | ||
| 5 | GND | GND | GND | GND | ||
| 6 | in | RxD | RxD+ | RxD+ | ||
| 7 | in | DSR | ||||
| 8 | in | CTS | RxD- | RxD- | ||
| (A rolled CAT5 cable will automatically perform DTE to DCE crossover) | ||||||
Optional Perle adapters for use with straight thru CAT5 cabling |
||||||
Hardware Specifications - IOLAN SDSC LDC Console Servers
| SDS8C LDC | SDS16C LDC | SDS32C LDC | |
|---|---|---|---|
| Processor | MPC8349E, 400 Mhz, 750 MIPS | ||
| Memory | |||
| RAM MB | 64 | 64 | 64 |
| Flash MB | 16 | 16 | 16 |
| Interface Ports | |||
| Number of Serial Ports | 8 | 16 | 32 |
| Serial Port Interface | Software selectable RS232 / RS485 / RS422 DTE on RJ45 - RS485: full and half duplex | ||
| Sun / Solaris | Sun / Oracle ‘Solaris' Safe - no "break signal" sent during power cycle causing costly server re-boots or downtime | ||
| Serial Port Speeds | 50bps to 230Kbps with customizable baud rate support | ||
| Data Bits | Configurable for 5,6,7 or 8-bit protocol support Use TruePort to transparently pass 9-bit serial data |
||
| Parity | Odd, Even, Mark, Space, None | ||
| Flow Control | Hardware, Software, Both, None | ||
| Local Console Port | RS232 on RJ45 with DB9 adapter (provided ) | ||
| Network | Dual 10/100/1000-base TX Ethernet RJ45 | ||
| Software selectable Ethernet speed 10/100/1000, Auto | |||
| Software selectable Half/Full/Auto duplex | |||
| Failsafe Alarm Relay | 3A@24v DC. Normally open contacts closed by IOLAN when active and opened upon alarm condition or power failure | ||
| Power | |||
| Dual Power Supply | 2 x Pluggable Terminal Blocks with screw terminals accommodating 28 - 12 AWG wire sizes | ||
| Nominal Input Voltage | 24v DC / 48v DC | ||
| Input Voltage Range | 18 - 72v DC | ||
| Current Consumption @ 18v DC (Amps) | 0.4 | 0.55 | 0.85 |
| Current Consumption @ 24v DC (Amps) | 0.3 | 0.4 | 0.65 |
| Current Consumption @ 48v DC (Amps) | 0.2 | 0.25 | 0.35 |
| Current Consumption @ 72v DC (Amps) | 0.15 | 0.18 | 0.25 |
| Typical Power Consumption (Watts) | 11 | 13 | 18 |
| Chassis Ground | Grounding screw for a #10 ring terminal | ||
| Indicators | |||
| LEDs | Power | ||
| System Ready | |||
| Network Link activity | |||
| Serial: Transmit and Receive data per port | |||
| Environmental Specifications | |||
| Heat Output (BTU/HR) | 37.6 | 44.4 | 61.5 |
| MTBF(Hours) | 126,302 | 105,495 | 82,402 |
Calculation model based on MIL-HDBK-217-FN2 @ 30 °C |
|||
| Operating Temperature | -40C ambient for 16 hours and +70C ambient for 16 hours without use of fans | ||
| Storage Temperature | -40C to 85C, -40F to 185F | ||
| Humidity | 5 to 95% (non condensing) for both storage and operation. | ||
| Case | SECC Zinc plated sheet metal (1 mm) | ||
| Ingress Protection Rating | IP30 | ||
| Mounting | 1U - 19" rack, front and rear mounting hardware included. DIN Rail mounting kit optional |
||
| Product Weight and Dimensions | |||
| Weight | 3.16 kg | 3.18 kg | 3.36 kg |
| Dimensions | 1U Rack form factor - 26.4 x 43.4 x 4.4 (cm), 10.38 x 17.1 x 1.75 (in) | ||
| Packaging | |||
| Shipping Weight | 3.96 kg | 3.98 kg | 4.16 kg |
| Shipping Dimensions | 59 x 36 x 9 (cm), 23 x 14 x 3.5 (in) | ||
| Regulatory Approvals | |||
| Network Equipment Building Systems (NEBS) | SR-3580 NEBS Level 3 | ||
| GR-1089-CORE : NEBS EMI and Safety | |||
| GR-1089-CORE per Verizon VZ.TPR.9205 and ATT-TP-76200 | |||
| GR-63-CORE: NEBS Physical Protection | |||
| GR-63-CORE / ANSI T1.319 per Verizon VZ.TPR.9305 and ATT-TP-76200 | |||
| Emissions | Power Line conducted: IEC 61850-3 Sec 5.8 | ||
| CISPR 32:2015/EN 55032:2015 (Class A) | |||
| EN55011 (CISPR11) | |||
| Telecom Line conducted: IEC 61000-6-4 | |||
| Radiated: IEC 61850-3 Sec 5.8 | |||
| CISPR 24:2010/EN 55024:2010 | |||
| EN61000-3-2 : 2010 Limits for Harmonic Current Emissions | |||
| EN61000-3-3 : 2010, Limits of Voltage Fluctuations and Flicker | |||
| EMC Interface Immunity | IEC 61850-3 (substations) IEEE 1613 (substations) (C37.90.x) Applies to all ports, signal and power connections |
||
| ESD: IEC61000-4-2, 8Kv Contact / 15Kv Air | |||
| Radiated RFI: IEC61000-4-3, 20 V/m (80M-1G) | |||
| Fast Transients / Burst: IEC61000-4-4, 4Kv Mains , I/O | |||
| Surge : IEC61000-4-5 4Kv AC line to Gnd, 2Kv AC Line to Line, 2Kv DC line to Gnd, 1 Kv DC Line to Line, RS232 = balanced, ethernet = unbalanced |
|||
| Conducted RF: IEC61000-4-6, 10 Vrms | |||
| Magnetic Field: IEC61000-4-8, 100 A/m, 1000 A/m (1 sec) | |||
| Dips and Interrupts: IEC61000-4-11, Criteria A/B/C | |||
| Oscillatory: EN61000-4-12, 2.5Kv common and differential mode | |||
| Low Frequency conducted: EN61000-4-16, 30V 60s, 300V 1s,15Hz-150KHz @ level 3 | |||
| Safety | UL/EN/IEC 62368-1 CAN/CSA C22.2 No. 62368-1 IEC 60950-1(ed 2); am1, am2 and EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013 |
||
| NEBS GR-1089-CORE ISSUE 4 (Level 3, Type 2 and Type 4) | |||
| Other | Reach, RoHS and WEEE Compliant Directive 2011/65/EU restriction of the use of certain hazardous substances in electrical and electronic equipment and meets the following standard:: EN 50581:2012 |
||
| CCATS - G168387 | |||
| ECCN - 5A992 | |||
| HTSUS Number: 8517.62.0020 | |||
| Perle Lifetime Warranty | |||
| IOLAN RJ45 Serial Connector Pinout | ||||||
|---|---|---|---|---|---|---|
|
Pinout | Direction | EIA-232 | EIA-422 | EIA-485 Full Duplex | EIA-485 Half Duplex |
| 1 | out | RTS | TxD+ | TxD+ | DATA+ | |
| 2 | out | DTR | ||||
| 3 | out | TxD | TxD- | TxD- | DATA- | |
| 4 | GND | GND | GND | GND | ||
| 5 | GND | GND | GND | GND | ||
| 6 | in | RxD | RxD+ | RxD+ | ||
| 7 | in | DSR | ||||
| 8 | in | CTS | RxD- | RxD- | ||
| (A rolled CAT5 cable will automatically perform DTE to DCE crossover) | ||||||
Optional Perle adapters for use with straight thru CAT5 cabling |
||||||
| TCP |
|---|
Using RAW TCP Sockets A raw TCP socket connection which can be initiated from the serial-Ethernet device or from the remote host/server. This can either be on a point to point or shared basis where a serial device can be shared amongst multiple devices. TCP sessions can be initiated either from the TCP server application or from thePerle IOLAN serial-Ethernet adapter.  |
| UDP |
Using Raw UDP Sockets For use with UDP based applications, Perle IOLANs can convert serial equipment data for transport across UDP packets either on a point to point basis or shared across multiple devices.  |
| Console Server |
Console Management For access to remote console ports on routers, switches,etc, Perle IOLAN’s enable administrators secure access to these RS232 ports via inband Reverse Telnet / SSH or out of band with dial-up modems. Perle IOLAN models with integrated modems are available.  |
| COM/TTY |
Connect Serial-based Applications with a COM/TTY Port Driver Serial ports can be connected to network servers or workstations running Perle's TruePort software operating as a virtual COM port. Sessions can be initiated either from the Perle IOLAN or from TruePort.  |
| Tunneling |
Serial Tunneling between two Serial Devices Serial Tunneling enables you to establish a link across Ethernet to a serial port on another IOLAN. Both IOLAN serial ports must be configured for Serial Tunneling (typically one serial port is configured as a Tunnel Server and the other serial port as a Tunnel Client).  |
| Virtual Modem |
Virtual Modem Enables the serial-Ethernet adapter to simulate a modem connection. When connected to the IOLAN and initiates a modem connection, the IOLAN starts up a TCP connection to another IOLAN serial-Ethernet adapter configured with a Virtual Modem serial port or to a host running a TCP application.  |