CTC Union FRM220-NMC, User Manual, Page: 109 / 182

Appendix A
107
A.5 FRM220-E1/T1 In-band Managed G.703 Fiber Media Converter (to be announced)
The FRM-E1 and FRM-T1 are high-performance G.703 E1 or T1 (DS1) over fiber media converters. These
converters fully support transparent transmissions of 2.048Mbps (or 1.544Mbps for T1) and completely handle
clocking in point-to-point or network applications. Additionally, the converters may be linked to
FRM-DATA
converters in unframed E1 (T1) at fixed data rate of 2048Kbps (1544Kbps for T1).
There are three models of FRM-E1 and FRM-T1 media converters, E1-BNC, E1-RJ-45, and T1-RJ-45. The E1-
BNC model supports coaxial connections with BNC connectors at 75 ohm impedance, while the E1-RJ-45 model
accepts twisted pair wiring at 120 ohm impedance on a shielded RJ-45 connector wired to industry standard USOC
RJ-48C. The T1 model sports an RJ-48C for twisted pair wiring at 100 ohms impedance.
There is one 4 position DIP switch located on the face of the FRM-E1 and FRM-T1 to configure the units when
used standalone. When the FRM-E1 and FRM-T1 are placed in the FRM220 with SNMP, the settings are
controlled by the chassis management system and any DIP settings are ignored. Additionally, when placed in the
managed rack, the remotely linked
FRM-E1 and FRM-T1 units are also controlled and configured through the in-
band management system.
The FRM-E1 is a fiber media transport for G.703 E1 transmission. The BNC model provides unbalanced 75
Ohm coaxial connections while the RJ-45 model provides balanced 120 Ohm connections over twisted pair wiring.
The FRM-T1 is a fiber media transport for G.703 T1 transmission and features an RJ-45 connector for connection
to 100 Ohm twisted pair wiring. All media converters are available with either multi-mode or single-mode optical
transceivers and with connectors for SC, ST, or FC. In single mode, WDM (Wave Division Multiplexing with SC
connector) is also available in 20 or 40KM reach which will provide the ability to transmit and receive data using
only a single optical fiber. A unique feature of the FRM-E1 and FRM-T1 converters is the use of a common PCB
card which may either be used as a standalone converter (FMC series) or placed in the FRM220 rack.
E1 Technical Specifications
Ports 1 port
Standards ITU-T G.703, G.704, G.706, G.732, G.823
Framing Unframed (transparent clear channel)
Data rate 2.048 Mbps
Line Code HDB3/AMI
Receive Level Long haul - 43dB
Line impedance 75 ohms for FIB2-E1B 120 ohms for FIB2-E1R
Connector
BNC for 75 ohms RJ-45 for 120 ohms
T1 Technical Specifications
Ports 1 port
Standards ITU-T G.703, G.704, AT&T TR-62411, ANSI T1.403
Framing Unframed (transparent clear channel)
Data rate 1.544 Mbps
Line Code B8ZS/AMI
Receive Level Long haul - 36dB
Line impedance 100 ohms for FIB2-T1R
Connector
RJ-45 for 100 ohms
Technical Specifications
Power consumption <4W
EMI
FCC Class A, CE (EN55022), (EN60950)
Dimensions: 122.6 x 85.6 x 20 mm (H x W x D)
Weight 11 Oz (340g)
Temperature 0 - 50
o
C (Operating) ; 0 - 70
o
C (Storage)
Humidity 20 - 80 % non-condensing (Operating) 10 - 90 % (Storage)
Fiber Media
(SC shown)
Status LEDs
G.703 Port
Configuration
DIP switch