9
Rear panel
The rear panel illustrated below accommodates all connections to the instrument with the exception of a front facing
USB interface.
OTS PB model item description
1. Ground connection with cable lug
2. IEC line power socket
3. Fuses
4. USB Type A socket
5. USB Type B socket
6. 12 VDC charger socket
OTS AF model
Item description
1. Ground connection with cable lug
2. IEC line power socket
3. Fuses
4. USB Type A socket
5. USB Type B socket
It is mandatory for safe operation that an earth ground cable is attached to this instrument before performing tests.
The ground connection is identified as item 1 in the illustration. Attention must be paid to product warnings and
markings.
Line power is applied via an IEC socket (2) and is fused (3). On all PB models, the internal batteries, if supplied, can be
charged by a jack type socket (6) from a vehicle or correctly rated wall plug transformer. If batteries are ordered with
this product a charger and vehicle charging cable is supplied. Note that the instrument is not designed to operate from
12 VDC, only to charge the batteries.
Two USB interface connectors, one type A (4) and one type B (5), offer USB host and device interfaces. A second USB
type A (host) interface is located on the front of the instrument for user convenience. The USB type A interface (4) is
used to drive a printer or flash/hard disk drive.
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