Access Multiplex
4 slots available for 5 plug-in types: 8-port U-interface plug-in compatible to Loop-U 3500 3-port HDSL-interface plug-in compatible to
Loop-H 3900 with line power option 6-port V.35-interface plug-in 5-port RS232/ X.50/ X.50 mux interface
plug-in Plug-in with E1 and Router Interface
Any combinations of n x 64 Kbps data streams can be multiplexed to fill an E1 or T1 line
Connection to LAN/WAN or host services Remote configuration and diagnostics Optional GUI NMS with LoopView Optional in-band 64-Kbps management 2-line by 40-character LCD and key pad for
local administration, monitoring, and maintenance LED indicators for each port Single AC or redundant DC plug-in modules Remote download of software SNMP Network Management Systems or simple terminal supervisory port
Loop-AM3420 is an Access Multiplexer that can combine various digital access interfaces into a single E1 or T1 line for convenient transport and switching. Interfaces include E1 Router, HDSL, U type used in ISDN, RS232, and V.35. These interfaces are compatible with other Loop products such as Loop-H 3900 for HDSL and Loop-U 3500 for U. Using these products, a DTE interface can be extended over RS232 copper wire pairs. Up to 30 time slots for the HDSL, U, RS232 and V.35 interfaces are multiplexed to fill an E1 or T1 line, with full flexibility of time slot assignment.
Loop-AM3420 supports local control and diagnostics by using 2-line by 40-character LCD display and keypads on the front panel, or by using a VT-100 terminal connected to the console port. Loop-AM3420 also supports Ethernet, SLIP, Telnet, and SNMP, so that it can be controlled and diagnosed from remote locations as well. Optional in-band management channel and LoopView with GUI are available. In addition to the LCD display, there is one status LED for each U, HDSL, V.35, or RS232 interface, and 4 LEDs for the E1 line.
For example: Loop-AM3420-E1 Loop-AM3420-U Loop-AM3420-SA For model 3420 for E1 interface with one 8-port IDSL plug-in module, and one single AC power.
Up to 4 plug-in cards, with 3 HDSL interfaces per card with line power option. Full duplex with adaptive echo cancellation HDSL line coding Unconditioned 19-26 AWG twisted pair Line rate: 272, 400, 528, 784, 1168, 1552, 2320 for data rates n x 64 Kbps.
| U Interface | |
|---|---|
| Type | Full duplex with echo cancellation |
| Line Type | Unconditioned twisted pair 19-26 AWG |
| Line Rate | 64 or 128 Kbps |
| Line Coding | 2B1Q |
| Connector | RJ48C |
Data Port 6-port DTE V.35 Data Rate n x 64 Kbps Connector DB25S (optional conversion cable DB25S to M34 connector)
DTE Interface (RS232-X.50 mux.)
Data Port 5-port RS232 with X.50 plug-in, subrate, with subrate mux MUX (a) 5 independent RS232, or (b) 5 subrate RS232 (X.50) muxed to 64K Data Rate For mode (a) 5 independent RS232: 1.2K, 2.4K, 4.8K, 9.6K, 19.2K, 38.4K, 48K , 64K SYNC
1.2K, 2.4K, 4.8K, 9.6K, 19.2K ASYNC For mode (b) 5 mux together: 1.2K, 2.4K, 4.8K, 9.6K SYNC 1.2K, 2.4K, 4.8K, 9.6K ASYNC
| Connector | DB25S | |||
|---|---|---|---|---|
| Network Line Interface - T1 | ||||
| Line Rate | 1.544 Mbps 50 bps | Output Signal | DSX1 | |
| Line Code | AMI/ B8ZS | Framing | D4/ ESF (selectable) | |
| Input Signal | ABAM cable length up to 655 feet | Connector | RJ48C | |
| Network Line Interface -E1 | ||||
| Line Rate | 2.048 Mbps 50 ppm | Framing | ITU G.704 | |
| Line Code | AMI/ HDB3 (selectable) | Connector | BNC/ RJ48C | |
| Input Signal | ITU G.703 to -10dB | Electrical | 75 ohm Coax/ 120 ohm twisted pair | |
| Output Signal ITU G.703 | Jitter | ITU G.823 | ||
| E1 Interface with Router Port | ||||
| E1 Interface | ||||
| Line Rate | 2.048 Mbps 50 ppm | Framing | ITU G.704 | |
| Line Code | AMI/ HDB3 (selectable) | Connector | BNC/ RJ48C | |
| Input Signal | ITU G.703 to -10dB | Electrical | 75 ohm Coax/ 120 ohm twisted pair | |
| Output Signal ITU G.703 | Jitter | ITU G.823 | ||
Number of ports Physical Interface Connector Routing Protocol Data Rates Supporting Protocols Management
1 10 BaseT x 1 RJ45 RIP-I, RIP-II N x 64 Kbps, N = 1 to 31, 15,000 frames per second TCP/IP, PPP, HDLC VT-100, SNMP
Keypad 4 operation keys plus ACO key LED 1 per U/ HDSL/ V.35-interface, ACO, Power, SYNC/TEST, LOF, BPV, RAI/AIS LCD 2 lines by 40 characters
| Dimensions | 432 x 176 x 298 mm (W×H×D) |
| Power | 100-240V, 50/60 Hz AC or Dual/ Single -48V DC, 30 Watts |
| Temperature | 0-50C |
| Humidity | 0-95%RH (non-condensing) |
| Mounting | Desk-top stackable, 19” / 23” rack mountable |
| Line Power Supply | Available only with DC power. |
| 60 mA constant current source, selectable peak voltage of 190 Vdc | |
| Clock Source |
Internal, E1/ T1 Line
Alarm Relay
Alarm Relay, Fuse alarm, and performance alarm
System configuration Parameters
Active Configuration, Stored Configuration, and Default Configuration (Stored in Non-volatile Memory)
Supervisor
RS232, VT-100 - front panel SLIP - rear panel 10 Base-T, SNMP - rear panel In-band 64 Kbps
Performance Registers Last 24 hours performance in 15 minutes interval and last 7 days in 24 hours summary Separate Registers 12 HDSL ports, network, user, and remote site Performance Reports Reports include HDSL port unsync Date & Time, Errored Second, Unavailable Second,
E1 Bursty Errored Second, Severe Errored Second, Degraded Minutes, and Controlled Slip Second. Also available in Statistics (%). Alarm Queue Containing 40 alarm records which record the latest alarm type, location, and date & time Threshold Bursty Seconds, Severely Errored Second, Degraded Minutes
Diagnostics Test Line
Loopback E1/ T1 interface (Line Loopback, Payload Loopback, Local Loopback) HDSL interface (Payload Loopback, Local loopback) U interface (Local Loopback, Payload Loopback)
Test Pattern E1/ T1 interface (215-1 PRBS, 3-in-24, 1-in-8, 2-in-8, 1:1 patterns) U/ HDSL/ DTE interface (211-1 BERT)
Subject to change without notice.