T1 AND E1 REMOTE ACCESS CONCENTRATORS
10
T1 Characteristics
(LRA3000A, LRA3002A) —
ISDN PRI Signaling (switch types): N1-2, AT&T
®
4ESS/5ESS/Definity™;
DMS500/250/100, SL100, INS1500 (Japan);
Framing: D4/SF, ESF;
Line coding: B8ZS;
Channel-associated signaling: Robbed-bit signaling (RBS) including E&M
Wink Start (B8ZS)
E1 Characteristics
(LRA3001A, LRA3003A) —
ISDN PRI Signaling (switch types): ETSI - CTR4/NET5 (Euro-ISDN),
1TR6 (Germany); TS014/TS038 (Australia/New Zealand);
for other countries, call Black Box Technical Support;
Framing: Multi-framing with CRC4, double framing;
Line coding: HDB3;
R2 channel-associated signaling: ITU, Mexico (Telmex™), Brazil,
Indonesia, or India (for other countries, call Black Box Tech Support)
Routing —
IP: Default route, static routes, RIP v1 and v2;
All other routing protocols are supported for bridging only
Authentication —
RADIUS authentication, PAP, CHAP, CLID, PPP Call Back (CBCP), basic
IP-address pooling; with proprietary CSM software, also supports proxy
to NT domains and proxy to RADIUS
Authorization —
All authorization options require CSM;
IP Layer 4 policy controls (per TCP/UDP port) based on remote user
and/or device; time-of-day, bandwidth, and maximum connect-time
restrictions; priority port reservation; policy violation logging; and
dynamic profile updates
Accounting —
RADIUS accounting; with proprietary CSM software, also supports PPP
connection statistics, connection accounting, and IP Layer 4 flow accounting
based on TCP/UDP port
Advanced Connection
Management —
Modem-inactivity timer;
All other connection-management options require CSM:
Advanced IP-address pooling, static IP addresses, dial-out (calling out),
device connection history, connection-problem logging, connection
accounting, and SQL-based reporting and statistics
Device Management —
In-band: SNMP;
Out-of band: RS-232 console, Telnet™ server, TFTP client
Number of
Internal Modems —
LRA3000A: (48);
LRA3001A: (30);
LRA3002A: (24);
LRA3003A: (60)