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Specifications
E1/T1 Interface
Framing
Unframed (transparent)
Bit Rate
E1:2.048 Mb/s , T1: 1.544Mb/s
Line Code
E1:AMI/HDB3, T1: AMI/B8ZS
Line Impedance
E1: Unbalanced 75 ohms (BNC cable)
E1: Balanced 120 ohms (RJ-45)
T1: Balanced 100 ohms (RJ-45)
Rx sensitivity
Short haul
"Pulse" Amplitude
Nominal 2.37V+/-10% for 75 ohms
Nominal 3.00V+/-10% for 120 ohms
"Zero" Amplitude
N/-0.3V
Internal Timing
+/-50 ppm
Jitter Performance
According to ITU-T G.823
Performance Monitor
According to ITU-T G.821
Standards
ITU-T G.703, G.704, G.706 and G.732
I/F Connector
RJ-45, BNC(via RJ-45 to BNC adapter cables)
Test Loops
LLB (Local Loop Back)
RLB (Remote Loop Back)
Ethernet Interface
Interface Type
10/100Base-TX
Connector
RJ-45
Standards
IEEE 802.3, 802.3u
Duplex modes
Full/Half
Test Loops
None
Miscellaneous
Indicators
Fx Link, E1/T1 Mode/Link/Loopback test,
LAN Link/Speed.
Power Input
AC adapter, 12VDC
Dimensions
88 x 21 x 139mm(HxWxD)
Temperature
0 ~ 60°C (Operating), -10 ~ 70°C (Sto
ra
ge)
Humidity
10 ~ 90% RH (non-condensing)
Certifications
CE (EMC&LVD), FCC, RoHS
Management Features
FRM220-FOM01 has no jumpers or DIP Switches, making it completely
software configurable. When placed in a stand-alone chassis, this device
supports a text based serial terminal with an easy to use menu system for
configuration. When placed in a managed chassis, FOM01 is configured
and monitored through chassis NMC (network management controller) via
console, Telnet, Web HTTP or SNMP.
1. Stand-alone - with serial console and menu driven settings
2. Rack management - When placed in NMC managed rack, all other
settings are overridden by NMC management.
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Panel
There are 2 x RJ-45 connectors, one for E1/T1 channel (USOC RJ-48C connection
to balanced E1 or T1) and one for Ethernet. Do not mix them up.
The optical aggregate utilizes SFP cage or fixed transceiver. SFP used must
support 155M (OC3/STM1) data rates and be MSA compliant.
The single LAN connector (RJ-45) supports 10/100Base Ethernet connection with
auto-negotiation and auto-MDIX.
Figure 1. Front Panel of FRM220-FOM01 and FOM01-SFP
Installation
Note: Unless FOM01 is placed in 20 slot or 2 slot chassis with NMC, this multiplexer
card can only be placed in the CH01M or CH02M as stand-alone.
Figure 2. Slide-in Card mounting of FRM220-FOM01
Follow all ESD precautions when handling the card and SFP modules.
CH01M-AD Chassis
Internal AC+ DC
w/ console port
FRM220-CH20
aka. FMUX20