Table 5-19 Connector Descriptions (Cn2) - NEC Xen Master System Hardware Manual

System Hardware Manual
5.7.3 LED Indications
Live LED indications are listed below.
✆
Blinking Red
✆
Steady Red
✆
Off
Busy LED indications are listed below.
✆
Steady Red
✆
Off
5.7.4 Connectors
The following connectors are located on the ECR-U13
ETU. Refer to Table 5-19 Connector Descriptions (CN2)
and Figure 5-39 ECR-U13 ETU.
✆
CN1
✆
CN2
✆
CN3
✆
CN4

Table 5-19 Connector Descriptions (CN2)

Pin Number
13~16
12
11
10
9
5~8
4
3
2
1
Normal Operation
Operation Stopped (power still on)
No Power
Some Relays Are Busy
All Relays Are Idle
Connects to the Backboard
Relay Contacts for Relays 11 and 12
Both-way Audio
External Paging
Audio output for Tone Ringer and
Night Chime
Description
Not Used
Relay #2
General Purpose
Relay #1
General Purpose
Not Used
Zone Paging Audio Input
External Paging BGM input
May 2001
Connection for
5 - 175