Chapter 1 Introduction
1.7.19 FRM220-iMUX Inverse Multiplexer Blades
The FRM220A-nE1/ET100 are 5, 8 or 16 E1 port inverse multiplexer cards with built-in Bridge for the
FRM220/220A Series Platform Media Converter Rack. The multiplexers support bundling Unframed E1s using
GFP-F (Generic Framing Procedure-Framed). The clock source may be selected internally or recovered from any
one of the received E1 signals. The Ethernet port utilizes a single RJ-45 connector or SFP for optical fiber,
depending on model. One single model supports either unbalanced 75 ohm or balanced 120 ohm (adapter cables
required). When the FRM220A-nE1/ET100 card is placed in the FRM220A rack with GSW/SNMP management, the
management can view the converter card's status, type, version, Ethernet link status and alarms. The card can be
configured to enable or disable the port, reset the card, set clocking, Ethernet mode and provide E1 analog
diagnostic loopbacks. A unique feature of the FRM220A-nE1/ET100 is the use of a common card design which
may either be inserted in an appropriate single or dual slot chassis as a stand-alone modem or as a card when
placed in the FRM220A-CH20 In-band managed rack.
Features
• Standalone type Ethernet to 5, 8, or 16 port E1 converter.
• Uplinks 100M Ethernet to aggregate trunk card of FRM220A
• Interface connectors, RJ-48C for 120Ω , BNCx2 for 75Ω per channel.
• E1s are bundled according to standard GFP-F
• LCAS (Link Capacity Adjustment Scheme) supports dynamic
bandwidth of virtual concatenated containers.
• E1 settings.
• E1 loopback (per channel)
• 75 or 120 ohm impedance
• Timing source setting (Any receive E1 recovery or internal oscillator).
• Embedded Operations Channel (EOC) for remote in-band management.
• Integrated BERT function
• RMON counter for LAN Tx/Rx byte count.
• VLAN tag support
• Bandwidth control (32K to 100M)
• LED indicators
Specifications
G.703 Interface
Connector HDB26 Female with adapters for 75 or 120 Ohm
Data rate 2048kb/s
Impedance 75 ohm for unbalanced, 120 ohm for balanced
Framing Requires Unframed, transparent clear channel E1s
RxSensitivity -43dB (extra Long Haul)
TxPulseAmp. 3.00V p-p (120 ohm); 2.73V p-p (75 ohm)
Line code HDB3
Indications LED (PWR, Alarm, Individual E1 status, Link, SD)
Ethernet Port 1 x RJ-45, Auto-Negotiation, Auto-MDIX (T-model)
1 x caged SFP (100Base-FX) (S-model)
VLAN IEEE802.1Q tagged VLAN support
Maximum MTU 1916 bytes
Ingress/Egress Bandwidth control (32K to 100M, nx32K granularity)
GFP-F per ITU-T G.7041
LCAS Enabled or disabled
Power (Card supports hot-swapping)
Input Card : 12VDC, Standalone : AC, DC options
Consumption <6W
Dimensions 155 x 88 x 23mm (D x W x H)
Weight 120g
Temperature 0 ~ 50°C (Operating), -10 ~ 70°C (Storage)
Humidity 10 ~ 90% non-condensing
Certification CE, FCC, LVD, RoHS
MTBF 65000 hrs (25°C)
Test Loops (set from console)
E1 Remote and Request Remote Loop back
BERT Integral 511 pattern generator (set from console)
This product includes the following models:
FRM220A-5, 8, 16E1-ET100T (5E1, 8E1 or 16E1 with RJ-45 LAN)
FRM220A-5, 8, 16E1-ET100S (5E1, 8E1 or 16E1 with SFP LAN)
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