Ericsson LBI-39101A manual Interconnecting The Equipment, Type

LBI-39101 INTERCONNECTING THE EQUIPMENT

Table 7 − Enhanced Audio Enclosure-To-CEC/IMC Call Director Audio Signal Descriptions

TYPE	INPUT /					USE
	OUTPUT
Patched Radio	Input			Radio audio from CIM TX channel/line 4. During a CD telephone patch, this audio is heard
						at the telephone.
CD/Operator Mic	Output				Telephone/operator mic audio to CIM RX channel/line 4. This audio is heard at the radio.
Table 8 − Enhanced Audio Enclosure-To-Call Director Control & Audio Signal Descriptions
NAME		INPUT /				USE
		OUTPUT
ON-HOOK N.O.						Optional – Normally-open relay contact (Form-A). Closure generated when the
						console disconnects the CD from the CEC/IMC. Used to put CD on-hook, if an input
(pin 1) and
			Output			exists. The relay remains energized for approximately 1.2 seconds. This value is
ON-HOOK COMMON
						fixed in the firmware and cannot be changed. Relay contact rating:
(pin 6)
						0.75 A @ 26 Vdc, 500 Vrms isolation from ground @ 60 Hz
CD HOOK SENSE IN			Input			Active low when the CD is placed off-hook. Typically connects to a dry contact
(pin 2) *						(SPST switch, Form-A relay, etc.) from Call Director.
						Optional – Active low when a handset is plugged into the CD. This handset overrides
CD JACK SENSE IN			Input			all audio connections to the Enhanced Audio Enclosure. The operator talks directly
(pin 3) *						to the phone via the handset instead of using the console’s headset or mic/speaker.
						Typically connects to a dry contact from Call Director.
GROUND (pin 4) *			n/a			Signal ground for CD HOOK SENSE IN and CD JACK SENSE IN sense inputs.
CD IN						Audio from the CD (telephone mic). This audio is heard by a radio in patch
			Input			operation, or by operator headset in normal operation. 600-ohm balanced input:
(pins 5 and 9)
						-26 dBm to -14 dBm, typically -20 dBm.
CD OUT						Radio/operator mic audio to the CD (telephone receiver). This audio is heard by the
			Output			telephone. 600-ohm balanced output:
( pins 7 and 8)
						-11 dBm to +1 dBm, typically -5 dBm.

*GROUND (pin 4) is common for CD HOOK SENSE IN (pin 2) and CD JACK SENSE IN (pin 3) This ground is not isolated from chassis ground.

CALL

DIR

CD HOOK SENSE IN

CD JACK SENSE IN

GROUND

NOTE:

1.VIEWED FROM BACK OF ENHANCED AUDIO ENCLOSURE OR WIRING SIDE OF MATING CONNECTOR.

1 ON-HOOK N.O.

6 ON-HOOK COMMON

2

7

3 HI/+LO/- CD OUT

8

4

9	HI/+	CD IN
5	LO/-

Figure 10 − Call Director Interface Connector At Enhanced Audio Enclosure

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