Specifications

X723-300151 8-3 Issue 2
8.3 Specifications
EMC
Complies with:
BS6527 1988 Class A EN55022, Emissions
IEC801 part 3 level 3, narrow-band susceptibility
British Telecom RC5000M open issue 11.1.9, broad-band
susceptibility
IEC801 part 2 level 3, ESD
Power Input
Voltage: 187-264VAC, 47 to 63Hz. Fused at 3 amps
99-132VAC, 47 to 63Hz. Fused at 3 amps
-38 to -60VDC, Fused at 8 amps. (Max -57VDC if a DT579
is fitted in the multiplexer)
For special applications a nominal 24VDC (18-32V) version
can be supplied. Contact Cray Communications for
details.
Connections: AC power: IEC320 chassis plug
DC power: Screw terminal block
Input Polarity Reversal
Protection is provided on the DC input versions.
Inrush Current
AC Input: <18A Peak
-48V DC Input: meets British Telecom BTR2511
Issue 3, Section 4.2
Output Power
AC and DC versions: 175 Watts max. excluding -48VDC output
Efficiency
Typically 70% at 175 Watts output.