DCB
Statistical Multiplexer SR-04
General
Port Specifications
Network Specifications
Operating Modes
Indicators (front panel)
Network Management Port
Network Management Port Commands
Physical/Electrical
The asynchronous ports can be individually set for speeds to 57.6 Kbps. Hardware (CTS/Busy high or low) or software (Xon/Xoff even, odd, mark, space or transparent) flow control is also set on a port by port basis.
The SR-04 composite is asynchronous or synchronous full duplex lines either analog or digital. The composite can be run at speeds up to 128 Kbps synchronous or 115.2 Kbps asynchronous. The composite may be used through analog leased lines, dial-up modems, ISDN TAs, radio modems, digital DSUs, or equivalent links.
The network management port includes local and remote configuration commands. The Show Configuration Commands allow the system manager to view the configuration settings of both the local and remote SR-04 Multiplexers. Network management features include port and composite loopbacks, capture of a remote or local port, send a test message to an individual local or remote port, set multiplexer ID for node identification and a built-in "data line monitor" which allows the monitoring of the transmit or receive lines at the local multiplexer. A unique feature of the SR multiplexer is the Copy Command. This command allows a trainer at the host site to "copy" any local or remote port to view exactly what the user is entering. This feature can save thousands of training dollars by eliminating travel expenses.
The SR-04 multiplexer has a side panel access for firmware cartridge installation. This feature simplifies installation of upgrades for new features and functions.
The SR-04 is compatible with virtually all async terminal-printer/computer links. You can save thousands of dollars by concentrating your terminals on one line while delivering top performance. In addition, with features like the loopback, test message, ID, monitor and copy commands, you can take charge of your network like never before.
Asynchronous Statistical Multiplexing
4 channels
All ports can be 57,600 bps
Data Format1 Start bitRates: 300, 1200, 1800, 2400, 4800, 9600, 19200, 57,600 bps individually selectable per port
8 Data bits including parity if used
1 Stop bit
10 Bits total
Interface: CCITT V.24, RS-232-D
Connectors: RJ-45 (8-wire)
Buffering: 64K dynamically allocated
Port Flow Control: Set on an individual port basisXon/Xoff
Clear to Send
Busy High
Busy Low
Rates: Follows modem clock signals to 128 Kbps synchronous, 115.2 Kbps asynchronous
Interface: CCITT V.24, RS-232-D
Connector: RJ-45 (per EIA/TIA 561 spec for RS-232 in a modular 8 position connector)
Error Correction: Automatic retransmission
Network to modem/DSU cable included
Normal on-line multiplexing
Network loopback
Power, Multiplexing, Receive Error, Modem Ready, Option, Port 1 Setup, Loopback
Interface: CCITT V.24, RS-232-D
Connector: RJ-45 (8-wire)
Can be mapped to Port 1
Network Management Port to terminal cable included
Help Screen
Remote Test Loop
Monitor Transmit
Monitor Receive
Network Loopback
Flow Control Active
Set Time
LOCAL & REMOTE:Show Configuration
Show Network
Configure Ports
Port Loopback
Device Type
Reset
Capture Port
Copy Port
Send Test Message
Activity Counters
Power requirements: 120 VAC, 30-43 Watts, .25-.36 Amps
101/4" x 93/4" x 21/4"
56 Kbps internal DSU/CSU
SR-04 | |
SR-04 | 4 (async) Port Multiplexer |
SR-DSU4 | Internal DSU for SR-04 |
SR-FR | Firmware to make SR-04 a 4 port async frad (Free when ordered w/unit) |