Chapter 1 Introduction
1.7.20 FRM220-Eoe1 Ethernet over E1 Converter
The FRM220A-Eoe1 is a single port G.703/704 Fractional E1 DSU/CSU card with built-in HDLC Bridge for the
FRM220/220A Series Platform Media Converter Rack. The converter supports Unframed, PCM31, and PCM30
framing modes. The clock source may be selected internally or recovered from received E1 signal. The Ethernet
port utilizes a single RJ-45 connector. One single model supports either unbalanced 75 ohm with two BNC
connectors or balanced 120 ohm with one RJ-45 connector. When the FRM220A-Eoe1 card is placed in the
FRM220 rack with 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, frame mode and provide analog diagnostic loopbacks. A unique feature of the FRM220A-Eoe1 is the use
of a common card design which may either be inserted in the FRM220-CH01M single slot chassis as a stand-alone
modem or as a card when placed in the FRM220-CH20 In-band managed ra
Features
• Standalone type, 1 port E1 to HDLC converter.
• Uplinks 100M Ethernet to Gigabit trunk card of FRM220A
• Interface connectors, RJ-48C for 120? , BNC*2 for 75?.
• E1 settings.
• Line Code HDB3 or AMI.
• Full or Fractional.
• Frame setting, E1(CCS/CAS).
• Idle code setting (0x7E or 0xFF).
• Auto generate (AIS) enable, disable setting.
• Timing source setting (Receive E1 recovery or internal oscillator).
• Active timeslot number setting (E1 CCS 1-31 or E1 CAS 1-30).
• Base timeslot setting (E1 CCS 1-31, E1 CAS 1-15 or 17-31.)
• Loop Back with integral BERT
• LED indicators
Specifications
• G.703 Interface
• Connector 1 x RJ-45 and 2 x BNC
• Data rate 2048kb/s
• Impedance 75 ohm for unbalanced, 120 ohm for balanced
• Framing CCS, CAS, Unframed
• RxSensitivity -43dB (extra Long Haul)
• TxPulseAmp. 3.00V p-p (120 ohm); 2.73V p-p (75 ohm)
• Line code HDB3 or AMI selectable
• Indications LED (PWR, TD/RD act., Test, Signal loss, Sync loss,
•
Alarm, Error
• Ethernet Port 1 x RJ-45, Auto-Negotiation, Auto-MDIX
• 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 (EMI/LVD), FCC, RoHS
• MTBF 75000 hrs (25°C)
• Tests (set from console)
• E1 Loops Remote and Request Remote Loop back
• BERT Integral 511 pattern generator (set from console)
This product includes the following models:
FRM220A-Eoe1 (Ethernet over E1 converter card)
ck.
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