NEC Neax 2400 Imx Message Center Interface Instruction Manual

							ND -7 0428 ( E)  CHAPTER 3
MCI  F O R L AN
Cl ie n t ( MC  fo r  LAN)   Serv e r (P BX)
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							CHAPTER 3  ND -7 0428 ( E)
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Cli e n t ( MC  fo r  LAN)   Serv e r (P BX)
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(5) Error Processing Sequence (4) for Transmission and Reception of Call Information
Figure 3-14 shows the sequence used when the server sends call information to the client and does not
receive any client response text or detects an error in the data received by the client; the server then releas-
es the link connected to the smaller numbered MC for LAN and sends call information to the other MC
for LAN. 
 
Figure 3-14   Transmission and Reception of Call Information Error Processing Sequence (4)
Client (MC for LAN) Server (PBX)
Call information retransmitted (Same data)
Client response text
Link release text
Call information retransmitted (Same data)
Client response text
2Text 
6Text 
2Text  Received data check
Received data checkSixth time
No text received
Socket discarded
Link released
(Client Response Text is 
not sent.)Socket discarded
Link released
T1 timer
Sixth time
No text received
T1 timer Transmission to the other MC
for external LANs started
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4
*Text identifier
Response No.
4
*Text identifier
Response No. 
						

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2.3 MWL Control
(1) Normal Processing Sequence for Control of MWL
Figure 3-15 shows the normal processing sequence used when the client requests the server to control
MWL.
 
Figure 3-15   MWL Control Processing Sequence
Client (MC for LAN) Server (PBX)
Lamp control request
1Text 
Received data OKReceived data check
Lamp control
3
0Text identifier
Response No. 
						

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Clie nt  ( M C f o r  LA N)   Serv e r ( PBX)
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Cli e n t ( MC  fo r  LAN)   Serv e r (PB X)
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F ir s t t imeT2 ti mer
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Clie nt ( M C f or  LAN)   Serv e r (PB X)
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2.5 Link Release Sequence
Figure 3-20 shows the link release sequence used in response to a request from the client.
 
Figure 3-20   Link Release Sequence
Client (MC for LAN) Server (PBX)
Link release request
Server response text
Note 1
Note 2
Note 1:
The device number conforms to the device number assigned to the MC for LAN.
Note 2:When six consecutively received texts assigned text identifier (6) check NG, the server discards the
socket and releases the link.
6
**Text identifier
Device No.
3
0Text identifier
ACK