W&G PJM-4

The PJM-4 i s a compact jitter meter which makes use of the most modern technology. It can be used to measure jitter on clock and data signals i n the frequency range 700 kbit/s to 16800 kbit/s. sinusoidal-, rectangular-, triangular - and sawtooth ( duty cycle 50%) clock signals can all be measured, as can data signals with the following line codes: HOB3, 8625, 88ZS, CMI, 1828, 483T, 5B68, N.11, NRZ (TTL/ECL) and RZ (TTL/ECL).

The built-in code error counter can be used for monitoring the transmission path for code errors. All of the above-mentioned codes can be monitored in this way. The phase hit counter is used for registering all phase hits which are above a threshold value which can be set to your own requirements.

• Configuration Part number BN2019/03 comes standard with the following fixed frequencies (in addition to external freq input):
  • 1544 Mbit/s, 3152 Mbit/s, 6312 Mbit/s, 44736 Mbit/s (DS1, DS1C, DS2, DS3)
• Option BN2019/00.10 adds frequencies as follows:
  • 2048 Mbit/s, 139264 Mbit/s (E1 and E4)
• Option BN958/21 adds GPIB

http://www.youtube.com/watch?v=Lr2uJya0IdI