FRADSWITCH-8A, FRADSWITCH-16A, FRADSWITCH-24A
4
Links (X.25) Characteristics
Number of Links 3
Data Rate All the links aggregate up to 2.15 Mbps
Interface RS-232/V.24, X.21, or V.35 (selected when you order)
Connectors RS-232/V.24 25-pin D-type, female
X.21 15-pin, female
V.35 34-pin, female
Protocol Complies with ITU X.25, LAPB (Blue Book, 1988)
Configuration
Clocking External clocking for receive and transmit paths
Selectable Parameters Frame window (k); Packet window (w);
Timers (T1, T3, T10, T11, T12, T13) and number of retries (N2);
Allocation of logical channels
Link Level Procedure LAPB can act as DTE or DCE at layers 2 and 3; Modulo-8,
128 power sequencing; Frame window range 1 through 127
Packet Size Up to 4096 bytes
Throughput 500 packets per second
RAM Size 256, 512, or 1024 KB
Channels
Number 8, 16, or 24
Interface RS-232/V.24
Connector RJ-45
Data Rate 75 bps to 38.4 Kbps, programmable
Flow Control X-ON/X-OFF
Channel Log-on Messages Herald and bulleting (user-definable)
Command Modes ITU X.28 and proprietary extensions;
ITU X.29
Terminal Handling Enhanced, handling beyond ITU X.3 requirements
1. Specifications
