E1/T1 Access Family
E1/T1 Cross-Rate Converter
G703FTEC
The G703-FTEC is 1U half 19" stand-alone or rack mountable T1 (US Standard), E1 (European Standard) converter and timeslot cross
connect which enables conversion between one T1 signal and one E1 signal. T1 and E1 signals with frames employ u-Law and A-Law
compander encoding principles respectively and encode those analog signals into 64kbits digital data. The E1 interface supports CCS (PCM31)
or CAS (PCM30) frames with or without CRC-4 and with HDB3 line coding. The T1 interface supports D4 or ESF frame formats with B8ZS or
AMI line code. Multiple clock source selection provides maximum flexibility in connecting both T1 and E1. The clock source may be from the T1
recovery clock, from the E1 recovery clock, from the internal oscillator, from an external clock or via transparent timing. All setup controls can be
performed via internal DIP switch settings or via the RS-232 c***ole port and ASCII terminal. Tests and diagnostics can easily be performed
from the front panel pushbutton switches. Diagnostics include T1 local/remote and E1 local/remote loop back.
Features
Converts between T1 and E1 data and signaling
Enable equipment to operate at T1 and E1 rates
Support G.802 Annex B
Configures A-law/m-law and signaling conversion
Transparent conversion at 64kbps timeslot level
Controlled slip for buffer over or under flow
24 timeslots of T1 Nx64 can be inserted into E1 Nx64,
30/CAS or 31/CCS timeslots
Application
Specificati***
Ports
LEDs
Standard
Power
Power C***umption
Dimensi***
(D x W x H)mm
Weight
Temperature
Humidity
Certification
MTBF
E1 interface
Framing: CAS/PCM30 or CCS/PCM31 selectable
Bit rate: 2.048Mbps
Line Code: HDB3
Line Impedance: 75 ohm (BNC) / 120 ohm (RJ-45)
Voice channel sample rule A-Law
CRC check: CRC-4 enable/disable
Pulse amplitude: Nominal 2.37V ±10% for 75ohm,
Nominal 3.00V ±10% for 120ohm
Zero amplitude: ±0.1V
Connector: RJ-45 and BNC pair
T1 interface
Framing: D4, ESF selectable
Bit rate: 1.544Mbps
Line Code: B8ZS / AMI
Equalization: 0 ~655 feet settable
Voice channel sample rule u-Law
CRC check: CRC-6 when ESF
Line Impedance: 100 ohms
Tran***it Pulse level: 3.0V ±10%,
Receive signal level: 0 ~-10dB
Connector: RJ-45 and Bantam Jacks
Power Alarm
ITU-T G.703, G.704, G.706, G.823, G.824, ANSI T1.403
AC: 100~240VAC
DC24: -18 ~36VDC, D***8: -36 ~72VDC
15W
235 x 195 x 45mm
1.6kg
0~50°C (Operating) ,0~70°C (Storage)
10~90% non-condensing
CE, FCC, RoHS
57,000 hours