The Universal I/O Module is ideal for serial asynchronous or synchronous applications in remote or regional sites supporting a wide range of user and network protocols, including SNA/SDLC, Bisync 3270, Async, X.25 and Frame Relay at line speeds of up to 2.048Mbps.

Each Universal I/O module is capable of supporting five serial V.24, V.35 and X.21 synchronous or asynchronous connections using an octopus cable, per card. The Universal I/O supports line speeds of up to 2.048Mbps.

The Climax900e supports 1 Universal I/O module.
The Climax950 and Climax960 can support up to six Universal I/O Modules.
The Climax2000 can support up to eight Universal I/O Modules.

Operational Features

• Supports a wide range of user devices and protocols, including Frame Relay, X.25, SNA/SDLC, Async, Bisync 3270 or Transparent HDLC per port providing ability to change protocols quickly, just by changing the port configuration.
  
• Ideal for regional branch offices requiring legacy protocol concentration.
  
• V.24 (default), V.35 and X.21 interfaces are user- configurable via jumpers on a per port basis.
  
• DTE/DCE is user configurable via jumpers on a per port basis.
  
• Clock source (internal and external) is user configurable on a per port basis, via jumpers; split clocking (supported on V.35 and X.21 interfaces) requires an external adapter.
  
• Connects to external devices through an octopus cable with one DB-68 very high-density connector and five DB-25 connectors (V.24 is default).
  
• Supports the following internetworking services - Frame Relay Network Interworking (FRF.5); LAN as per RFC-1483; ATM DXI; and X.25
  
• Fully SNMP-manageable using Asce Networks' Java-based management system for monitoring, statistics collection and billing information.
  
• Configurable using Asce Networks' user-friendly object-oriented graphical user interface, CXTool.

PROTOCOL SUPPORT
Frame Relay

• From 16 to 4000 active DLCIs.
  
• Up to 256 remotes for routing and bridging per Climax900e chassis.
  
• Full link management support LMI, Annex D, Annex A; also configurable for none (link always active).
  
• Auto-LMI detection for 'plug and play' configuration.
  
• Supports UNI-U, UNI-N, NNI.
  
• Extensive statistics per SAP (Service Access Point) and per circuit.
  
• Full congestion management per port and at the DLCI level using CIR, Bc and Be, traffic sensitive prioritization to ensure timely transmission of critical data.
  
• Voice packet recognition capability to avoid discarding or delaying voice packets.
  
• Data compression option to optimize bandwidth usage.
  
• Supports RFC 1490 multiprotocol encapsulation and PVC consolidation to optimize DLCI usage and reduce recurring line costs.
  
• Multicast one way, two ways, n ways services.
  
• Alternate routing per circuit to provide redundancy and ensure network uptime.
  
• Dial back-up support analog modem or ISDN.
  
• Frame Relay to ATM

SNA/SDLC

• SNA/SDLC local spoofing to reduce overhead on network.
  
• Up to 128 controllers per unit.
  
• Physical unit emulation: PU1, PU2, PU2.1, PU4 and PU5.
  
• SDLC to Frame Relay conversion and encapsulation; SDLC-LLC2 conversion; LLC2/BNN (Boundary Node Network); LLC2/BAN (Boundary Access Node); SDLC to QLLC/X.25 over Frame Relay.
  
• SDLC to ATM

X.25

• At X.25 Link Level, supports LAPB, DTE or DCE; Modulo 8 or 128; Window size 1 to 127 and LAPD over ISDN-D channel.
  
• At X.25 Network Level, supports Modulo 8 or 128, X.121 addressing; SVCs, PVCs; M, D, and Q bits.
  
• CCITT X.25 facilities include: flow control negotiation, throughput class negotiation, incoming/outgoing calls barred, one-way LCs incoming or outgoing, CUG (Closed User Group), reverse charging and reverse charge acceptance, local charge prevention, charging information, fast select and fast select acceptance, NUI (network user identification), Hunt group, call redirection, transit delay indication, packet size to 1024.
  
• X.25 to ATM

Async

• Supports CCITT recommendations X.3, X.28 and X.29.
  
• Async to Frame Relay (Async to X.25 over Frame Relay).
  
• Async to ATM

Bisync 3270

• Bisync 3270 local spoofing to reduce overhead on network.
  
• Supports devices that transmit ASCII, EBCDIC and transparent text.
  
• Supports up to 64 control units or 64 devices per Climax900e or Climax950.
  
• DSP emulation; converts between X.25 and Bisync 3270 data formats providing support for Bisync traffic, or X.25 traffic from a front end processor.

Data Expansion Module (DEM)
Required when a Universal I/O is housed in slots 5 and 6. Provides Serial Communications Controllers (SCCs) for ports 2, 3, 4 & 5.

Specifications