(ESF)
SSM support
E1 mode:
2.048 MHz (square wave) frequency output
(2) 2.048 Mb/sec data rate outputs:
Outputs are E1 frame all ones
Supports CRC4 and CAS Multiframe
SSM support
Connector and Signal Type: Terminal block
1.544/2.048MHz RS-485
T1 according to GR-499-CORE (100 Ω )
E1 according to ITU-T G703 (120 Ω )
Maximum Number of Cards: 6
Ordering Information: 1204-0A: T1/E1 (100/120 Ω ) module
Figure 5-35: Model 1204-0A option card rear plate
Table 5-14: 1204-0A option card pin assignments
Pin Assignments
Pin No. Signal Function Description
1 GND Ground Ground
2 1.544MHz/2.048MHz RS-485 A Terminal Square wave
3 1.544MHz/2.048MHz RS-485 B Terminal Square wave
4 GND Ground Ground
426 SecureSync 2400 User Manual
APPENDIX
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