Type: OMR-112H
Application: UL E822922
Rated coil voltage: 5 VDC (at 20XXX°C)
Operating voltage: 3.5 VDC (at 20XXX°C)
Release voltage: 0.5 VDC (at 20XXX°C)
Maximum applicable voltage: 8 VDC (at 20XXX°C)
no-compromise high-end design. 4 inputs
exclusive finish, solid aluminum enclosure
high-quality ALPS volume potentiometer
audio-grade selected op-amps
output coupling without capacitor
input selection through highly reliable reed relay
separate left and right input section
programmable level adjustment +6dB for each input
headphones output
Relays generally have 4 connectors (if they have 5, you'll ignore one of them). Refer to the schematic that came with your relay, or that may be printed on the side of the relay.

Super sensitive 5VDC reed relay features a 700 ohm coil and SPST contacts. Size: 1 1/16" x 3/8" x 3/8". G4194
output mute function (except phones)
phono RIAA input section
phono input can be configured as line input
switchable monitor output (for tape, CDR, MD,...)
also available in assembled version: M8021
Type: Sip
Contact arrangements: 1A, 1B
Contact current: 1A
Coil voltage: 1A, 200V DC
Power consumption: 0.2 W
Mechanical: 100,000,000
Electrical: 10,000,000
Terminal type: PCB. High power & low cost. 30A switching capability. Less than 1W coil power. Open, dust cover or immersion cleanable case version available.