HOLMCO N40 Series Manual de usuario
HOLMBERG GmbH &Co. KG
Ohlauer Strasse 5-11
10999 Berlin
Germany
CAGE Code: D9240
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 1 of 17
This document is property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
RECOMMENDED OPERATION PRACTICES
N40 HANDSET with SUPPORT BRACKET
Note:
The following Recommended Operation Practices (ROP) summarize the results of observations
experienced during In-Service operation of the N40 handset with support bracket for several years.
This Recommended Operation Practices manual intends to give some advice to operational and
maintenance staff on how to handle handsets with support brackets for a safe operation, aiming to
improve their life cycle and reduce maintenance costs. Nevertheless damages cannot be avoided
completely herewith.
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 2 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
RECORD OF REVISIONS
REV
ISSUE
INSERTED
REV
ISSUE
INSERTED
NO.
DATE
DATE
BY
NO.
DATE
DATE
BY
02A
APR 28/2014
03A
NOV 21/2018
21.11.2018
HOLMCO
04A
MAR 11/2020
11.03.2020
HOLMCO
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 3 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
LIST OF ABBREVIATIONS
CMM
...............
Component Maintenance Manual
Fig.
...............
Figure
HOLMCO
...............
Holmberg GmbH & Co.KG
PNR
...............
Part number
PTT
...............
Push to talk
QTY
...............
Quantity
ROP
...............
Recommended Operation Practices
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 4 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
TABLE OF CONTENTS
RECORD OF REVISIONS...........................................................................................................................................2
LIST OF ABBREVIATIONS ........................................................................................................................................3
TABLE OF CONTENTS..............................................................................................................................................4
A. INTRODUCTION ...............................................................................................................................................5
B. DESCRIPTION AND OPERATION .....................................................................................................................6
C. HOW TO AVOID DAMAGE DUE TO IMPROPER HANDLING .......................................................................13
D. EQUIPMENT CLEANING PROCEDURE ...........................................................................................................17
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 5 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
A. INTRODUCTION
1. GENERAL
A. Cockpit and cabin crews are requested to read this manual carefully to be able to use
N40 handsets with support brackets in an adequate and proper way to avoid any
unexpected damages.
B. This document describes operational and recommended handling practices for the
component in service. It does not describe maintenance of components. For
maintenance procedures, please refer to applicable CMM under ASSOCIATED
PUBLICATION.
C. This document contains:
-Information about operation of the component
-Recommended handling practices
-Equipment cleaning procedure
2. REVISION SERVICE
This manual will be revised by revision if necessary.
3. APPLICABILITY
This ROP is applicable to all variances of N40 handset with support bracket as follow.
NOMENCLATURE
GENERAL P/N
REMARK/CONFIGURATION
Handset with Support Bracket
(Analogue Series: N40A)
N40-1Aw0xyy-10x
N40-1Bw0xyy-10x
A: First Version (superseded by B!)
B: GSM-hardened Version
w: Color code
x: Electrical and Mechanical Interface (Analogue)
(x= 1: Spring retained x= 2: Release Mechanism)
yy: Keyboard Type
Handset with Support Bracket
(Digital Series: N40D)
N40-1Aw0x0y-z0x
N40-2Aw0x0y-z0x
A: First version
w: Color code
x: Electrical and Mechanical Interface (Digital)
(x= 3: Spring retained x= 4: Release Mechanism)
y: Keyboard Type
(y = 1: Flight Deck, y = 2: Cabin)
z: Coiled Cord Type (Length)
(z = 1: Standard, z = 2: Elongated)
4. HOW TO USE THIS MANUAL
A. All instructions in this manual should be used only for cockpit /cabin handset with support
bracket as mentioned in chapter under APPLICABILITY.
5. ASSOCIATED PUBLICATION
CMM 44-10-02 - N40 digital series handset with support bracket
CMM 44-10-03 - N40 analogue series handset with support bracket
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 6 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
B. DESCRIPTION AND OPERATION
1. DESCRIPTION AND OPERATION OF THE HANDSET WITH SUPPORT BRACKET
A. SUBASSEMBLIES
The handset with support bracket consists out of three main assemblies:
- Handset
- Cable (Coiled cord)
- Support bracket.
Figure 1: Handset with support bracket e.g. N40 digital series
3-Row Handset Display
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 7 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
B. HANDSET
i. KEYPAD KEYS, N40 analogue series
Figure 2: Handset Operation - N40 analogue series
Key label
Qty
Key description
Function Keys
9 or 12
customized keyboard layout
incl. RESET key for clearing the
last action / operation
PTT
1
push to talk
Table 1: Handset keys N40 analogue series
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 8 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
ii. KEYPAD KEYS, N40 digital series
Figure 3: Handset Operation - N40 digital serie
Key label
Qty
Key description
3
multi-function (soft) keys
1-6
6
numerical keys
PA
1
passenger address system
PRIO
1
priority call
EMER
1
emergency call
CAPT
1
captain call (cabin handset only)
CONF
1
conference call
PURS
1
purser call
+
1
plus sign
1
reset/clear
1
send
PTT
1
push to talk
Table 2: Handset keys N40 digital series
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 9 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
iii. RELEASE MECHANISM
The handset is automatically held by a snap-in locking mechanism of the support bracket when it
becomes hooked on.
a. CABIN HANDSET
The cabin handset has a locking mechanism, which allows locking / unlocking the handset on /
from its support bracket.
To unlock the handset from its support bracket press the Release Button, lift handset up and
move it away from its support bracket.
Figure 4: Cabin handset release mechanism
Support Bracket
Handset
Release –Button “PRESS”
Cable Assembly
RECOMMENDED
OPERATION PRACTICES
No: Ho-P6091-ROP-0000
Rev: 04A
Date: Mar 11/2020
Page: 10 of 17
N40 HANDSET with SUPPORT BRACKET
This document is the property of Holmberg GmbH & Co.KG.
It shall not be partially or totally reproduced, lent to a third party or used against the aforementioned Company.
To release the handset –press the Release
Button, lift the handset up and move it away
from its support bracket
Figure 5: Release handset
To lock the handset, first place the lower side of
the handset on the bracket (the locking nose of
the support bracket should engage the hole
located at the lower side of the handset, it
should fit if the microphone side is correctly put
in the bracket) and then push without using too
much force on the upper side of the handset to
get it rested in, then make sure it is safely locked.
See fig. 6.
Unlocked handset is going to drop and could
lead to an unserviceable handset.
WARNING:
Unlocked handset may also drop and harm
persons!
Figure 6: Locking of handset
Peg
Locking Nose of support bracket
Release –Button “PRESS”
Este manual sirve para los siguientes modelos
2
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