Sennheiser SI 30 Product Sheet page 2

SI 30
Polar pattern of the SI 30/SZI 30
Coverage area of the SI 30 / SZI 30
Four SZI 30, mounted at an angle of 60° to one anoth-
er. For comparison purposes, the coverage of a single
SZI 30 is shown at 30°.
Supplied Accessories
1 x AF connection cable, 1/8" stereo
jack plug to Texas connector, length 2 m
1 x 1/8 to 1/4" stereo jack adapter
Required Components
Power supply for one SI30 or SZI30
2 V 4 D C 2 , 0 0 m A
Power supply for up to four SI30
and SZI30 24VDC, 500mA (requires KKY20-015)
RF connection cable (2x 1/8" jack); 3.9"
Mounting clamp (one required for
a e h c I S 0 3 a d n S I Z 0 3
Optional Accessories
RF extension cable, 24.6'
AF extension cable, 3.28'
AF extension cable, 24.6'
4-way "octopus" cable (Texas connectors)
Mounting hardware for clusters of 2 to 4
I S 0 3 a d n S I Z 0 3
Wall/ceiling mount, 5/8" thread
Adapter, 5/8" to 3/8", for mounting a
i s g n e l I S 0 3 r o S I Z 0 3
Compatible Accessories
Single channel stethophone receiver
Two channel stethophone receiver
Charger and power supply for 10 batteries
Charger and power supply for 11-50 batteries
Spare rechargeable batteries
Latex replacement ear cushions
Architect's Speci cations
The unit shall be a wideband infrared modulator with a nominal deviation of ±50 kHz. The
Carrier frequencies must be 2.3 and 2.8 mHz. The unit must have a 3-pin Texas socket AF
input with a 45 mV–4 V input voltage for nominal deviation. The AF frequency response
must be 30–18,000 Hz, with THD equalling ≤ 1%. The AF signal-to-noise ratio shall be ≥ 60
bd(A) rms. The output impedance shall be approx. 50 Ω . There shall be 11 diodes. The
max. coverage area shall be approx. 80 m, with a radiating power of approx .5 W. The
operating voltage shall be 24–27 DC via 2-pin Texas socket. The current consumption shall
be approx. 180 mA. The dimensions shall be approx. 4.64 x .98 x 3.54 and weigh approx.
4.93 oz The unit shall be a Sennheiser SI 30.
S46562
N T 0 2 1 - 1 - 0 2
NT20-4-120
KR20-015
Z I K 0 2
KR 20-7
KK 20-1
KK 20-7
KKY20-015
Z I M 0 2
WM1
M Z A 2 6 1
RI250/RI250-J/RI250-S
HDI302
L151-10 and NT92-120
L151-10 (one for every 10 batteries)
NT2013-120
BA151 NiMH
EP405L