Shure UA User Manual page 3

Battery Life (Typical)
U1, U2: 12 hours (with 1.5V AA alkaline battery)
U1H: 6 hours (with 1.5V AA alkaline battery)
Operating Temperature Range
-20° to 50° C (-4° to 122° F) NOTE: Battery characteristics may limit this range
Overall Dimensions
U1, U1A: 98.4 mm L x 64.7 mm W x 24.6 mm D (3-7/8 x 2-1/2 x 31/32 in.)
U2/58:254 mm L x 50.8 mm Dia. (10 x 2 in.)
U2/BETA 58: 254 mm L x 53.2 mm Dia. (10 x 2-3/32 in.)
U2/87:228.6 mm x 49.2 mm Dia. (9 x 1-15/16 in.)
U2/BETA 87: 216 mm L x 50.8 mm Dia. (8-1/2 x 2 in.)
U4S/U4D: 44.5 mm H x 482.6 mm W x 295.3 mm D (1-3/4 x 19 x 11-5/8 in.)
Net Weight
U1, U1A: 175.2 g (6.1 oz.) without battery
U2/58, U2/BETA 58: 375.6 g (13.2 oz.) without battery
U2/87, U2/BETA 87: 303.1 g (10.7 oz) without battery
U4S: 3.30 kg (7.27 lbs)
U4D: 3.85 kg (8.48 lbs)
Certification
U1, U1A, U2: Type Accepted under FCC Parts 74. Certified by IC in Canada under
TRC-78.
U4S, U4D: UL and cUL Listed to UL 813 and CSA C22.2 No. 1. VDE Certified to EN
60 950. Approved under the Notification provision of FCC Part 15; Certified by IC in
Canada under TRC-78.
U1, U1H Transmitter Input (Figure 1)
Connector:
Input Configuration:
Actual Impedance:
Maximum Input Level:
(TA4F) Connector Pin
Assignments:
LEMO Connector
Pin Assignments:
Voltage for Remote Power:
4-Pin female mini connector (TA4F) or
LEMO connector (optional)
Unbalanced, active
18 kW with lavalier microphone
1 MW with instrument cable
6 Vp-p (+7 dBV) for 1% THD at minimum gain setting
using 1 kHz signal.
Pin 1: Tied to Ground
Pin 2: Tied to +5 V
Pin 3: Tied to Audio
Pin 4: Tied thru 20kW Resistor to Ground.
(On instrument adapter cable, Pin 4 floats)
Pin 1: Tied to Pin 3 and 10 kW to Ground
Pin 3: Tied to Pin 1
Pin 4: Tied to Shield (Ground for Positive Bias)
+5 V supplied to microphone cartridge
3
Pin 2: +5V