Features
- The ASM-MN-214 is a 19", 4U high,
rack-mount, hub for Short Range Modems. The hub accommodates up to 14
cards, and supports more than 20 different types of cards.
Any combination of modem cards can be installed. Cards can be removed or
inserted during operation without interference to operation of other
cards.
- Operating over 2-wire, 4-wire or fiber
optic, baseband modems support data rates from 300 bps to 2.048 Mbps.
ASM-MN-214 provides a cost effective and reliable concentration point for
multiple baseband links supporting last mile or campus applications.
- ASM-MN-214 can be powered from either AC
or DC power sources, or from both. Each power supply supports a full rack
of cards, regardless of the type. The hub accommodates two separate power
supplies that back up each other in case of failure. Each power supply can
be replaced during operation without affecting the operation of other
modems (hot swapping).
- The ASM-MN-214 rear panel consists of
fourteen 5-screw, snap-type terminal blocks and fourteen 25-pin, D-type
connectors (one terminal block and one DB-25 connector per card).
- Modems with X.21 or V.35 interface require
an external mechanical adapter. CIA/X.21 can be ordered for converting two
adjacent DB-25 connectors to two X.21 15-pin connectors, CIA/V.35 for
converting one DB-25 connector to a V.35 34-pin connector.
Specifications
- High density 19" modem rack
- Any combination of up to 14 modem cards
- Fiber optic and copper wire modems in a single
modem rack
- Hot swapping of cards and power supplies
- Optional power feeding from different sources (AC
or DC)
- Separate power supplies for full redundancy
- 4U high
ASM-MN-214/*/#/&
19" Hub for Short Range Modems
ASM-214-PS/*
Power supply for ASM-MN-214
| * |
Specify main power supply:
115 for 115 VAC supply
230 for 230 VAC supply
48 for 48 VDC supply
24 for 24 VDC supply |
| # |
Specify redundant power supply:
115 for 115 VAC supply
230 for 230 VAC supply
48 for -48 VDC supply
24 for 24 VDC supply |
| & |
Specify line connector:
BNC for BNC and RJ-45 line connectors
(Default is terminal block.) |
CIA/+
Mechanical adapter converting
DB-25 connectors into standard connectors
| + |
Specify CIA connector type:
X21 for X.21 D-type, 15-pin connector for two adjacent modem
cards
V35 for V.35 34-pin connector for one modem card |
ASM-MN-114-BP
Blank panel for ASM-MN-214
ORDERING INFO
ASM-60/CO/AC/ETH/QH
ASM-60/CO/AC/HSSI
ASM-60/CO/AC/IP
ASM-60/CO/AC/UTP
ASM-60/CPE/AC/ETH/QH
ASM-60/CPE/AC/HSSI
ASM-60/CPE/AC/IP
ASM-60/CPE/AC/UTP
APPLICATION
Table 1. Modem Cards for ASM-MN-214
| Type of Module |
Name of Module |
Main Features |
| Synchronous Short Range
Modems |
ASM-20/R
ASM-24/R
ASMi-24/R
ASM-40/R
ASM-45-1/R
ASMi-50/R
FOM-E1/T1/R
FOM-40/R
MTM-15/R
MTM-20/R |
up to 256 kbps
144 kbps, based on PR-4
144 kbps, with remote management
2048 kbps
768 kbps
64-1152 kbps, based on LA-DSL
E1/T1 fiber optic
2048 kbps, fiber optic
19.2 kbps, medium range
64 kbps, medium range |
| Sync/Async Short Range
Modems |
ASM-10/8/R
ASM-31/R
LDV-2/R |
19.2 kbps
128 kbps, all rate 2-wire
19.2 kbps, 2-wire, data-over-voice |
| Fractional CSU/DSU |
FCD-1L/R
FCD-2L/R
FCD-2L/R/LTU |
T1, CSU/DSU
E1, DSU
E1, with LTU |
| Rate and Interface
Converter |
SPD-703-1/R |
64 kbps, codirectional |
|
