Rohde & Schwarz Inc TMU925 用户手册

System Manual 2600.5423.02 ─ 01

C R&S PMU901 Interface Description

L

Input

V AC = 170 V to 264 V

I 

≤ 15 A

47 Hz to 63 Hz

cos 

φ ≥ 0.95 at 230 V

and P

nom

X1.1

Power supply con-
nection for the regu-
lar power supply

N

Input

0 V

X1.2

LReserve

Input

V AC = 170 V - 264 V

I 

≤ 15 A

47 Hz to 63 Hz

cos 

φ ≥ 0.95 at 230 V

and P

nom

X1.3

Power supply con-
nection for the
standby power sup-
ply

NReserve

Input

0 V

X1.5

PE

Input

0 V

X1.PE

Power supply con-
nection

Since the PE connections also need to be fed in separately for separate electrical circuits,
a second protective earth must be ensured via a grounding bolt (40 A test current), since
only one shared PE is fed in on the X1.

Increased leakage current! The instrument must first be connected to the protective
ground. An additional ground wire connection is provided since two power supply circuits
are possible: Automatically pluggable (socket 3587.4188.00, at pin contact 3587.4194.00
on the rack side) for rack installation and as a stud for table operation as well.
Shutoff at all poles for the connecting cables is necessary for two-phase networks (2W
+ PE).

 

X1: Supply Input; Schaltbau M3 connector