Meinberg TCR170PEX - Manual (Page 26)

26
Technical specification TCR170PEX
RECEIVER INPUT: AM-input (BNC-connector):
insulated by a transformer
impedance settable 50
Ω, 600 Ω, 5 kΩ
input signal: 600 mV
pp
to 8 V
pp
(Mark)
other ranges on request
DC Level Shift input (D-Sub-connector):
insulated by photocoupler
internal series resistance:
220
Ω
maximum forward current: 50 mA
diode vorward voltage:
1.0 V...1.3 V
optical input(option):
optcal receive power: min. 3µW
optical connector:
ST-connector
for GI 50/125µm
or GI 62,5/125µm
gradient fiber
DECODING: decoding of the following telegrams possible:
IRIG-A133/A132/A003/A002
IRIG-B123/B122/B003/B002
AFNOR NFS 87-500
ACCURACY OF TIME BASE: +/-5
μsec compared to IRIG reference marker
REQUIRED ACCURACY OF
TIME CODE SOURCE:
+/- 100ppm
HOLDOVER MODE: automatic switching to crystal time base
accuracy approximately +/- 1 * 10E-8 if decoder
has been synchronous for more than 1h
BACKUP-BATTERY: if the power supply fails, an onboard realtime
clock keeps time and date information
important system parameters are stored in the
RAM of the system
lifetime of the Lithium battery at least 10 years