Centrex Recording I/F

CRI-376 Recording Interface

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Controls Recording of Meridian Digital CENTREX calls

The CRI enables most recording devices to record calls made on your Meridian Business Set (MBS). The CRI is connected to your MBS and your recording device. You can select the lines you want to record using the dial pad of the MBS. You can even selectively record lines that appear on a multi-button add-on module. The CRI will operate perfectly with recorders that detect contact closure, a ground input or voice. You can program the CRI to supply an audible alert tone for applications where you need to signify that a call is being recorded.


The CRI is perfectly suited to those companies and institutions that have to record their calls. Simply forget that the CRI is there. It will take care of recording every call placed on selected lines. If you need to indicate to the caller, or remind yourself, that the conversation is being recorded, you can program the CRI to supply an audible alert tone.

CRI Application
CRI Application Multiple Installation


  • Compatible with most industry standard recording devices
  • Programmable to allow users to select which line(s) are recorded on both the Meridian Business Set and any add-on modules
  • Programmable tone alert
  • Operates with “contact closure”, “ground input” and “voice operation” recorders
  • Provides a dry contact output



Operating Supply Voltage18 28VDC
Operating Supply Current50 200mA
Note: A 24VDC 250 mA wall transformer is an acceptable
power supply and is provided with the CRI-376.
Input Impedance: 200 – 4000 Hz25  Kohm
Input Resistance: DC2  Mohm
Insertion Loss (200 – 4000 Hz)  0.5dB
Longitudinal Voltage  30VAC
Longitudinal Balance (200 – 4000 Hz)66  dB
EMI/RFI Susceptibility3  v/m
Audio Output Impedance 600 ohm
Gain (300 – 3600 Hz)-2 +2dB
Relay Contact Rating (normally open contacts)  10VA
Alert Tone Output    
Frequency 1400 Hz
Duration 0.5 sec
Repeats every15sec
Operating Temperature32 122°F
 0 50°C
Storage Temperature-40 158°F
 -40 70°C
Humidity (non-condensing)  95 %RH

Dimensions (LxWxH)
5″ x 5″ x 1.5″ (12.7 x 12.7 x 3.8 cm)

Shipping Specifications
10.75″ x 6.375″ x 3.375″ (27.3 x 16.2 x 8.6 cm)
1.40 lbs. (0.635 kg)

Ordering Information

CRI-376Centrex Recording Interface
(equipped with 24VDC power supply)



Approval Number

DOC CS03 350 4284 A
DOC C108-8 Class A Approved
CSA C22-2 No. 225-M90 LR 65726
FCC Part 68 FCNCAN-65100-PN-N
FCC Part 15 Class A Approved
UL 1459-2 D059210801C

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