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Redundancy is an important issue for industry, and several different
solutions have been developed to prevent damage caused by equipment or
software failures. “Watchdog” hardware is required to utilize redundant
hardware, and a “Token” switching mechanism is required for software.
The CN2600 terminal server uses its built-in dual-LAN ports to
implement a “redundant COM” mode that keep your applications running
smoothly.
Dual-LAN Redundancy
The CN2600 has two separate LAN ports that can be connected to
separate LAN networks. Dual-LAN redundancy involves setting up two
separate physical networks to connect the PC host with the CN2600. In
this case, the PC host must also be installed with two LAN cards. If
one of the networks fails, the PC host will still be able to
communicate with your serial devices over the redundant LAN.
Redundant COM
The “Redundant COM” (patent pending) operation mode can be used to
set up a redundant LAN between the CN2600’s COM ports and the host
computer. The redundant structure involves using the CN2600’s two LAN
ports to set up two independent LANs that connect the CN2600 to the
host computer. If either of the two LANs fails, the other LAN will
continue transmitting packets between the serial devices and the host,
with the data transmitted through the CN2600. One of the biggest
advantages of using Moxa’s Redundant COM mode is that the “switching
time” is zero. What this means is that if one of the LANs fails, data
transmission between the PC host the serial devices will not be
interrupted.
Dual-host Redundancy
The CN2600’s dual LAN cards can also be used to set up “dual-host”
redundancy. In this case, both networks (LAN A and LAN B in the figure)
are connected to two different hosts. If either of the two hosts shuts
down unexpectedly, the other host will continue transmitting packets to
(and receiving packets from) the serial devices connected to the
CN2600.
Dual-AC Model Supported
Dual-power redundancy uses two power inputs and redundant internal
power supplies to ensure that the CN2600’s console port, serial ports,
and LAN ports will be available, even in the event of power circuit
failure.
 Appearance
Dimensions
Pin Assignments
 Data Sheet
| • LAN Interface |
| Number of Ports |
2 |
| Speed |
10/100 Mbps, auto MDI/MDIX |
| Connector(s) |
8-pin RJ45 |
| Magnetic Isolation Protection |
1.5 KV built-in |
| • Serial Interface |
| Serial Standards |
CN2610: RS-232
CN2650/2650I: RS-232/422/485 |
| Number of Ports |
8 or 16 |
| Connector(s) |
CN2610/2650: 8-pin RJ45
CH2650I: DB9 male |
| RS-485 Data Direction Control |
ADDC® (Automatic Data Direction Control) |
| Console Port |
Dedicated RS-232 console port on rear panel (8-pin RJ45) |
| ESD Protection |
15 KV for all signals |
| Optical Isolation Protection |
2 KV (CN2650I) |
| • Serial Communication Parameters |
| Data Bits |
5, 6, 7, 8 |
| Stop Bits |
1, 1.5, 2 |
| Parity |
None, Even, Odd, Space, Mark |
| Flow Control |
RTS/CTS, XON/XOFF |
| Baudrate |
50 bps to 921.6 Kbps |
| • Serial Signals |
| RS-232 |
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 |
Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-4w |
Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-2w |
Data+, Data-, GND |
| • Software |
| Network Protocols |
ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, DNS, SNMP, HTTP, SMTP, ARP, PPPoE, DDNS |
| Security Protocols |
RADIUS, https, SSH, PAP, CHAP |
| Driver Support |
Windows Real COM drivers (for Windows 95, 98, ME, NT, 2000, XP, 2003, Vista, XP x64, 2003 x64, Vista x64), Linux Real TTY driver, fixed TTY drivers (for SCO Unix, SCO OpenServer, UnixWare 7, UnixWare 2.1, SVR 4.2, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i) |
| Configuration Options |
Web Console, Serial Console, Telnet Console, Windows Search Utility |
| Management |
SNMP MIB-II |
| IP Routing |
Static, RIP-I, RIP-II |
| • Physical Characteristics |
| Enclosure |
SECC sheet metal (1 mm), IP30 protection |
| Weight |
CN2610-8-2AC: 3760 g
CN2610-16-2AC: 3810 g
CN2650-8: 3740 g
CN2650-16: 3790 g
CN2650-8-2AC: 3900 g
CN2650-16-2AC: 3980 g |
| Dimensions |
Without ears: 440 x 198 x 45 mm (17.32 x 7.80 x 1.77 in)
With ears: 480 x 198 x 45 mm (18.9 x 7.80 x 1.77 in) |
| • Applications |
| Terminal Sessions |
8 sessions per port |
| • Environmental Limits |
| Operating Temperature |
0 to 55°C (32 to 131°F) |
| Operating Humidity |
5 to 95% RH |
| Storage Temperature |
-20 to 70°C (-4 to 158°F) |
| Surge Protection |
15 KV ESD protection embedded |
| • Power Requirements |
| Input Voltage |
100 to 240 VAC, 47 to 63 Hz |
| Power Consumption |
235 mA @ 100 VAC, 145 mA @ 240 VAC |
| Power Line Protection |
1 KV burst (EN61000-4-4: EFT/B), 2 KV surge (EN61000-4-5) |
| • Regulatory Approvals |
| Safety |
UL (UL60950), TÜV (EN60950) |
| EMC |
CE (EN55022 Class A, EN55024), FCC Part 15 Subpart B Class A |
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Features
LCD panel for easy IP address configuration
Dual-LAN cards with two independent MAC addresses and IP addresses
Redundant COM function available when both LANs are active
Dual-host redundancy can be used to add a backup PC to your system
Dual AC power inputs
Real COM/TTY drivers for Windows and Linux
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