5

Specifications

Input and output

RF input/output

DUT RF IN/OUT

(N1961A front)

Maximum input: 4 W CW, 0 VDC

Maximum output: Typically +15 dBm,

Input impedance: 50 Ohm nominal

CAL RF OUT

(N1961A front)

Maximum output: +15 dBm

Maximum reverse power: 1 W CW, 0 VDC

Nominal impedance: 50 Ohm

External reference input

EXT REF IN

(Located at rear panel of

the rack)

Input frequency: 10 MHz (±5 ppm)

Input level range: 0 to +13 dBm

Input impedance: 50 Ohm nominal

PC/peripheral input/output

USB

Four auxiliary ports are available: one on the front I/O panel, two on the

front panel, and one on the rear panel of the industrial PC

Serial (RS-232)

Two on the front I/O panel, DB9 male connector

LAN

One on the front I/O panel, one on the real I/O panel (for intra/internet

connection) 100 Base-T Ethernet, RJ-45 connector

GPIB

One on the front I/O panel for additional instrument connection

Timebase specification

Internal timebase

Internal timebase of the 8960/E5515C wireless communications test set is

fed to all other instruments in the system. The 8960’s internal oven-

controlled crystal oscillator’s specifications are as follows:

•

Aging rates: < ±0.1 ppm per year, < ±0.005 ppm peak-to-peak per day

during any 24-hour period starting 24 hours or more after a cold start

•

Temperature stability: < ±0.01 ppm, frequency variation from +25 °C

over the temperature range 0 to +55 °C

Warm-up time: 5 minutes to be within ±0.1 ppm of frequency at one hour,

15 minutes to be within ±0.01 ppm of frequency at one hour

External timebase

When the external reference signal is present on the EXT REF IN, the

system instruments will be locked to it

Recommended system path loss calibration interval

Nominal

One year

Exception

System path loss calibration must be performed when any of the following

events occur in the related signal path:

•

Any instrument RF interconnect cable is replaced

•

Any instrument is calibrated

Any instrument is repaired and re-calibrated

General specifications

Operating conditions

General

Indoor

Storage temperature

–20 to +70 °C

Operating temperature

+10 to +30 °C

Accuracy specified

temperature

+20 to +30 °C (Refer to measurement accuracy specification of individual

radio technology for further information)

Humidity (relative)

5 to 80% relative humidity (non-condensing)

Altitude

0 to 2 km

Power requirement

90 to 254 VAC, 50 to 60 Hz, 4118 VA maximum

Rack dimensions

1.6 m rack (EIA: 32 RU)

Two/three racks

configuration

(H x W x D)

1620 mm x 1200 mm x 905 mm (63.8 in x 47.2 in x 35.6 in)

When mounting work surfaces, maximum extra-depth is 500 mm (19.7 in)

Weight

1.6 m rack x 2 racks

1.6 m rack x 3 racks

505 kg maximum (1,110 lbs)

714 kg maximum (1,570.8 lbs)