Gigamon G-TAP M Series Installation instructions

G-TAP M Series
Hardware Guide
GigaVUE M Series
Product Version: 2.3.01 and above
Document Version: 1.0
(See Change Notes for document updates.)

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Gigamon Inc.
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Santa Clara, CA 95054
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Contents
G-TAP M Series Hardware Guide 1
Contents 3
About This Guide 4
Installing and Removing G-TAP M Series Modules 4
Installing G-TAP M Series Modules in a G-TAP M Series Chassis 5
Removing G-TAP M Series Modules 6
Connecting G-TAP M Series Modules 6
Disconnecting Fiber from the Modules 6
Routing and Port Labels 6
Port Labels 8
Connecting G-TAP M Series Breakout Panels 9
PNL-M341 Breakout Panel Connection 9
Connecting the PNL-M341 or PNL-M343 for Breakout 12
Connecting the PNL-M341 or PNL-M343 for Aggregation 12
G-TAP M Series TAP Module Specifications 13
Features and Benefits 13
G-TAP M Series TAP Module Specifications 13
Physical Weight and Dimensions 17
Electrical Characteristics 17
Troubleshooting and Best Practices 18
Common Issues and Troubleshooting 18
Generic Troubleshooting Steps 19
Best Practices 21
Additional Sources of Information 22
Documentation 22
Documentation Feedback 25
Contact Technical Support 26
Contact Sales 26
The Gigamon Community 27
Glossary 28
Contents 3
G-TAP M Series Hardware Guide

About This Guide
This guide describes how to rack mount, assemble, and connect the Gigamon Tapping
Access Point (G-TAP) M Series modules manufactured by Gigamon®Inc.
The G-TAP M Series modules contain from one to six passive, optical splitter TAPs for
common optical media and speeds. Similar to the rest of the G-TAP line, the G-TAP M
Series modules provide visibility to 1Gb, 10Gb, 25Gb, 40Gb, and 100Gb traffic.
The G-TAP M Series modules are built to access multimode short-range links and single-
mode, long-range links. The optical TAPs of the modules provide a duplication of
production network traffic for analytic and security tools.
The G-TAP M Series modules have the following capabilities:
■The number of modules that can be installed in a G-TAP M Series chassis are:
oUp to six modules can be installed in a G-TAP M Series TAP-M200, which is a 1
Rackmount Unit (RU) chassis.
oUp to three modules can be installed in a G-TAP M Series TAP-M100T, which is a
1/2 RU chassis.
oUp to two multimode unidirectional TAP modules from the TAP-Mxx1ULT family
can be installed in a G-TAP M Series TAP-M202ULT, which is a 1 RU chassis.
■Visibility to higher-density links leveraging higher speed optics.
■Completely passive. The G-TAP M Series modules never require power, software, or
configuration.
■LC Duplex connectors or MPO/MTP connectors for network links leading directly
into the Gigamon Visibility Platform.
■Integration with all GigaVUE nodes.
There are also two G-TAP M Series breakout panels that provide for the breakout or
aggregation of GigaVUE ports.
Installing and Removing G-TAP M Series
Modules
A G-TAP M Series module consists of one, two, three, four, or six TAPs and installs into
either a 1 RU G-TAP M Series chassis (TAP-M200 or TAP-M202ULT), or a 1/2 RU G-TAP M
Series chassis (TAP-M100T). A G-TAP M Series chassis can contain up to six M Series
modules. G-TAP M Series TAPs using MPO/MTP connectors have up to three TAPs per
module. TAPs using LC connectors have up to six TAPs per module as shown in Figure 1
G-TAP M Series Module with Six TAPs and LC Connectors.
Contents 4
G-TAP M Series Hardware Guide

Figure 1 G-TAP M Series Module with Six TAPs and LC Connectors
The following chapter discusses the process for installing and removing the G-TAP M
Series modules.
Installing G-TAP M Series Modules in a G-TAP M Series Chassis
To install G-TAP M Series modules in a G-TAP M Series chassis, do the following:
1. Install the G-TAP M Series chassis in a rack. Following figures show examples of 1RU
G-TAP M Series TAP-M200 chassis, TAP-M202ULT chassis, and 1/2RU G-TAP M Series
TAP-M100T chassis that are empty.
NOTE:You can either flush mount the rack or install it with a 3in setback.
Figure 2 Empty 1RU G-TAP M Series TAP-M200 chassis
Figure 3 Empty 1RU G-TAP M Series TAP-M202ULT chassis
Figure 4 Empty 1/2RU G-TAP M Series TAP-M100T chassis
2. Hold the module by the handle and gently slide it into one of the slots in the
chassis.
3. Push the module into the slot until it is seated. Magnets inside the chassis hold the
module in place.
4. Repeat steps 2 and 3 for each module to be inserted into the chassis. Following
figures show the G-TAP M Series chassis with modules installed in each slot.
Figure 5 G-TAP M Series TAP-M200 Chassis with Modules Installed
Figure 6 G-TAP M Series TAP-M202ULT Chassis with Modules Installed
Figure 7 G-TAP M Series TAP-M100T Chassis with Modules Installed
Contents 5
G-TAP M Series Hardware Guide

Removing G-TAP M Series Modules
To remove a G-TAP M Series module, do the following:
1. Hold the module by the handle and pull it forward to release it from the magnets
inside the chassis.
2. Gently slide the module out of its slot.
Connecting G-TAP M Series Modules
Links are tapped with G-TAP M Series by disconnecting an existing link between two
network devices (for example, the connection between an access switch and a
distribution network) and reconnecting the link so that network data flows through one
TAP.
Disconnecting Fiber from the Modules
LC Duplex or MPO/MTP connectors are easily accessed when connected to the module.
Merely pull the TAP module out of the G-TAP M Series chassis by 3in or 4in. This alleviates
the need for special connector latches or extraction tools.
Routing and Port Labels
A module has a set of either three, four, or six TAPs, depending on which module is used.
Each TAP has an X port, a Y port, and two TAP ports. The ports are indicated by the
orange label on the top panel to assist with the proper connections of the TAP to the
network. Each module also has a routing diagram on the top panel. The breakout panels
PNL-M341 and PNL-M343 also have routing and port labels.
There are two types of TAPs—Fused TAPs and Thin Film TAPs. Following table provides
the list of TAPs under each type:
Fused TAPs Thin Film TAPs
M251 M251T, M251LT, and M251ULT
M253 M253T, M253LT, and M253ULT
M271 M271T, M271LT, M271ULT
M273 M273T, M273LT, and M273ULT
M473 M252LT, M261LT, M262LT, M263LT, and
M272LT
M451T, M451ULT, M453T, and M473T
M471, M471T, M471ULT, and M471-SR10
Table 1: Fused and Thin Film TAPs
Routing Labels
Contents 6
G-TAP M Series Hardware Guide

Figure Figure 8Routing Diagram for Fused Type TAPs shows the routing diagram that is
on the top panel of the Fused type G-TAP models. Refer to the Connecting G-TAP M
Series Modules for the list of Fused TAPs.
Figure 8 Routing Diagram for Fused Type TAPs
Figure Figure 9Routing Diagram for Thin Film Type TAPs shows the routing diagram that
is on the top panel of Thin Film type G-TAP models. Refer to the Connecting G-TAP M
Series Modules for the list of Thin Film TAPs.
Figure 9 Routing Diagram for Thin Film Type TAPs
Figure Figure 10Routing Diagram for G-TAP M506A or G-TAP M506T shows the routing
diagram that is on the top panel of the G-TAPM506A or G-TAP M506T.
Figure 10 Routing Diagram for G-TAP M506A or G-TAP M506T
Figure Figure 11Routing Diagram for Breakout Panels PNL-M341, PNL-M341T, PNL-M343,
and PNL-M343T shows the routing diagram that is on the top panel of breakout panels
PNL-M341, PNL-M341T, PNL-M343, and PNL-M343T.
Contents 7
G-TAP M Series Hardware Guide

Figure 11 Routing Diagram for Breakout Panels PNL-M341, PNL-M341T, PNL-M343, and
PNL-M343T
Port Labels
Figure Figure 12Port Label for G-TAP M251, M 251T, M253T, M271, M271T, M273, M273T,
M453, and M473 shows the port label that is on the top panel of G-TAP models M251,
M251T, M253T, M271, M271T, M273, M273T, M453, and M473.
Figure 12 Port Label for G-TAP M251, M 251T, M253T, M271, M271T, M273, M273T, M453, and
M473
Figure Figure 13Port Label for G-TAP M451, M451T, M453T, M471, M471T, M471-SR10, and
M473T shows the port label that is on the top panel of G-TAP models M451, M451T, M453T,
M471, M471T, M47 1-SR10, and M473T.
Figure 13 Port Label for G-TAP M451, M451T, M453T, M471, M471T, M471-SR10, and M473T
Figure Figure 14Port Label for G-TAP M251LT, M252LT, M253LT, M253ULT, M261LT, M262LT,
M263LT, M271LT, M272LT, M273LT, and M273ULT shows the port label that is on the top
panel of G-TAP models M251LT, M252LT, M253LT, M253ULT, M261LT, M262LT, M263LT,
M271LT, M272LT, M273LT, and M273ULT.
Figure 14 Port Label for G-TAP M251LT, M252LT, M253LT, M253ULT, M261LT, M262LT,
M263LT, M271LT, M272LT, M273LT, and M273ULT
Figure Figure 15Port Label for G-TAP M251ULT and M271ULT shows the port label that is
on top of G-TAP model M251ULT and M271ULT.
Contents 8
G-TAP M Series Hardware Guide

Figure 15 Port Label for G-TAP M251ULT and M271ULT
Figure Figure 16Port Label for G-TAP M451ULT and M471ULT shows the port label that is
on top of G-TAP model M451ULT and M471ULT.
Figure 16 Port Label for G-TAP M451ULT and M471ULT
Figure Figure 17Port Label for G-TAP M506A and G-TAP M506T shows the port label that
is on top of G-TAP model M506A and M506T.
Figure 17 Port Label for G-TAP M506A and G-TAP M506T
Figure Figure 18Port Label for Breakout Panels PNL-M341, PNL-M341T, PNL-M343, and
PNL-M343T shows the port label that is on the top panel of breakout panels PNL-M341,
PNL-M341T, PNL-M343, and PNL-M343T.
Figure 18 Port Label for Breakout Panels PNL-M341, PNL-M341T, PNL-M343, and PNL-
M343T
Connecting G-TAP M Series Breakout Panels
Breakout panels are used to breakout single ports to multiple ports or to aggregate
multiple ports to a single port.
There are two G-TAP M Series breakout panels available:
■PNL-M341
■PNL-M343
This section provides the following information:
■Connecting G-TAP M Series Breakout Panels
o
PNL-M341 Breakout Panel Connection
The PNL-M341 is a Multimode (MM) breakout panel with a granularity of three breakouts
per module. It provides three MPO ports for 40Gb/100Gb SR4 optics and 12 LC ports for
10Gb/25Gb SR optics.
NOTE:Purchase MPO and LC patch cables separately
Contents 9
G-TAP M Series Hardware Guide

The PNL-M341 breakout panel contains three breakout modules labeled A, B, and C, and
can be used for the breakout of a 40Gb port to four 10Gb links or for the aggregation of
four 10Gb links to a 40Gb port, or for the breakout of a 100Gb port to four 25Gb links or for
the aggregation of four 25Gb links to a 100Gb port.
Refer to Figure 19PNL-M341 Connections for Breakout for an example of using the PNL-
M341 breakout panel to breakout a single 40Gb tool port to multiple 10Gb fiber outputs.
Figure 19 PNL-M341 Connections for Breakout
Refer to Figure 20PNL-M341 Connected to a TA10 for Aggregationfor an example of using
the PNL-M341 breakout panel to aggregate multiple ports to a single tool port.
Figure 20 PNL-M341 Connected to a TA10 for Aggregation
Contents 10
G-TAP M Series Hardware Guide

MPO and LC Connectors and Cabling
The PNL-M341 breakout panel has three MPO connectors, each going to four LC
duplexes. The MPO ports are MTP (UPC with pin-male), aqua color. The LC ports are LC
(UPC), aqua color.
The MPO port connectors support 40Gb/100Gb SR4 MM QSFP+/QSFP28 transceivers. The
LC port connectors support 10Gb/25Gb SR MM SFP+/SFP28 transceivers.
The MPO port connectors take MM QSFP MTP(F)/UPC-MTP(F)/UPC cabling.
The LC port connectors take MM LC/UPC-LC/UPC duplex cabling.
PNL-M343 Breakout Panel Connection
The PNL-M343 is a Singlemode (SM) breakout panel with a granularity of three breakouts
per module. It provides three MPO ports for 40Gb PLR4 optics and twelve LC ports for
10Gb LR optics.
NOTE:Purchase MPO and LC patch cables separately.
The PNL-M343 breakout panel contains three breakout modules labeled A, B, and C, and
can be used for the breakout of a 40Gb port to four 10Gb links or for the aggregation of
four 10Gb links to a 40Gb port.
Refer to Figure 21PNL-M343 Connections for Breakout for an example of using the PNL-
M343 breakout panel to breakout a single 40Gb tool port to multiple 10Gb fiber outputs.
Figure 21 PNL-M343 Connections for Breakout
Refer to Figure 22PNL-M343 Connected to a TA10 for Aggregation for an example of
using the PNL-M343 breakout panel to aggregate multiple ports to a single tool port.
Contents 11
G-TAP M Series Hardware Guide

Figure 22 PNL-M343 Connected to a TA10 for Aggregation
MPO and LC Connectors and Cabling
The PNL-M343 breakout panel has three MPO connectors, each going to four LC
duplexes. The MPO ports are MTP (APC with pin-male), green color. The LC ports are LC
(UPC), blue color.
The MPO port connectors support 40Gb/100Gb PLR4 SM QSFP+ transceivers. The LC port
connectors support 10Gb/25Gb LR SM SFP+ transceivers.
The MPO port connectors take SM QSFP MTP(F)/APC-MTP(F)/APC cabling.
The LC port connectors take SM LC/UPC-LC/UPC duplex cabling.
Connecting the PNL-M341 or PNL-M343 for Breakout
To use the PNL-M341 or PNL-M343 to breakout a single port to multiple ports:
1. On the GigaVUE node, set the port mode to 4x for the 40Gb ports that will connect
to the breakout panel. You can change the mode using GigaVUE-OS CLI or
GigaVUE-FM.
2. Use a patch cable to connect the GigaVUE node to an MPO port (such as A) on the
breakout panel. The traffic on MPO Port A is sent to four different transmitting LC
ports, such as TX1 to TX4 on A1 to A4.
3. Connect the LC ports (such as A1 to A4) on the breakout panel to tools.
Refer to Figure 19PNL-M341 Connections for Breakout or Figure 21PNL-M343 Connections
for Breakout.
Connecting the PNL-M341 or PNL-M343 for Aggregation
To use the PNL-M341 or PNL-M343 breakout panel to aggregate multiple GigaVUE 10Gb
ports (from a network port or 10Gb tool port) to a single 40Gb fiber output:
Contents 12
G-TAP M Series Hardware Guide

1. Connect the GigaVUE 10Gb port to any of the receiving LC ports on the breakout
panel, such as Rx1 to RX4 on C1 to C4. These ports are aggregated to the
corresponding MPO port (C).
2. Connect the MPO port (C) on the breakout panel, to the destination 40Gb port.
NOTE:If the destination port is a 40Gb network port on a GigaVUE HC Series or
GigaVUE TA Series visibility node, the port must be in 4x mode.
Refer to Figure 20PNL-M341 Connected to a TA10 for Aggregation or Figure 22PNL-M343
Connected to a TA10 for Aggregation.
G-TAP M Series TAP Module Specifications
This chapter describes the features and benefits, module specifications, physical
dimensions and electrical characteristics ofG-TAP M Series
Features and Benefits
Feature Benefit
Powerful Traffic Mirroring
Capabilities
The G-TAP M Series modules passively mirror 100% of network traffic
including errors, non-standard network traffic, and network packets that
do not conform to established protocol standards enabling detailed
analysis, security, and monitoring.
Completely Passive TAP The G-TAP M Series modules rely on passive full duplex fiber optic splitters,
which results in non-point-of-failure operation. It requires no power source
to operate.
GigaVUE® Integration Easy integration with the full family of GigaVUE® Visibility Fabric™ nodes
for maximum flexibility. Connect the G-TAP M Series modules to network
ports on a GigaVUE fabric node to take advantage of powerful intelligent
traffic filtering, aggregation, and modification offered through Visibility
Fabric architecture.
G-TAP M Series TAP Module Specifications
There are three types of G-TAP M Series modules:
Type Products
Multimode (MM) ●Short Reach (SR) for 10Gbps, 40Gbps, and 100Gbps products
●Short Wavelength (SX) for 1.25Gbps products
Single-mode (SM) ●Long Reach (LR) for 10Gbps, 40Gbps, 100Gbps and 400 Gbps
products
●Long Wavelength (LX) for 1.25Gbps products
Bi-directional (BiDi) ●Cisco BiDi for 40Gbps and 100Gbps products
Contents 13
G-TAP M Series Hardware Guide

Table 2: MM, SR TAP Modules describes the MM, SR TAP modules.
G-TAP
M
Series
Module
Speed Split
Ratio
Max
Network
Loss
Max
TAP
Loss
Connector Mounting
Chassis
Fiber
Type
TAP-M251 1G/10G 50/50 3.9dB 3.9dB LC (UPC) TAP-
M100T/TAP-
M200
MM (50/125
micron) for
850nm
wavelength
TAP-M251T 1G/10G 50/50 3.9dB 3.9dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-
M251LT
1G/10G/25G 50/50 3.9dB 3.9dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-
M251ULT
1G/10G/25G 50/50 3.9dB 5.1dB LC (UPC) TAP-
M202ULT
TAP-
M261LT
1G/10G/25G 60/40 3.15dB 5.15dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-M271 1G/10G 70/30 2.2dB 6.2dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-M271T 1G/10G 70/30 2.2dB 6.2dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-
M271LT
1G/10G/25G 70/30 2.2dB 6.2dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-
M271ULT
1G/10G/25G 70/30 2.2dB 7.4dB LC (UPC) TAP-
M202ULT
TAP-M451 40G/100G 50/50 4.3dB 4.3dB MPO/MTP
(UPC)
TAP-
M100T/TAP-
M200
TAP-M451T 40G/100G 50/50 4.3dB 4.3dB MPO/MTP
(UPC)
TAP-
M100T/TAP-
M200
TAP-
M451ULT
40G/100G 50/50 4.3dB 5.5dB MPO/MTP
(UPC)
TAP-
M202ULT
TAP-M471 40G/100G 70/30 2.8dB 6.4dB MPO/MTP
(UPC)
TAP-
M100T/TAP-
M200
TAP-M471-
SR10
100G 70/30 2.8dB 6.6dB MPO/MTP
(UPC)
TAP-
M100T/TAP-
M200
Table 2: MM, SR TAP Modules
Contents 14
G-TAP M Series Hardware Guide

G-TAP
M
Series
Module
Speed Split
Ratio
Max
Network
Loss
Max
TAP
Loss
Connector Mounting
Chassis
Fiber
Type
TAP-M471T 40G/100G 70/30 2.8dB 6.4dB MPO/MTP
(UPC)
TAP-
M100T/TAP-
M200
TAP-
M471ULT
40G/100G 70/30 2.8dB 7.4dB MPO/MTP
(UPC)
TAP-
M202ULT
TAP-
M252LT
100M/1G 50/50 3.9dB 3.9dB LC (UPC) TAP-
M100T/TAP-
M200
MM
(62.5/125
micron) for
850nm
wavelength
TAP-
M262LT
100M/1G 60/40 3.15dB 5.15dB LC (UPC) TAP-
M100T/TAP-
M200
TAP-
M272LT
100M/1G 70/30 2.2dB 6.2dB LC (UPC) TAP-
M100T/TAP-
M200
Table 3: SM, LR TAP Modules describes the SM, LR TAP modules, and describes the BiDi
TAP module1.
G-TAP
M
Series
Modul
e
Speed Split
Rati
o
Max
Networ
k Loss
Max
TAP
Los
s
Connect
or
Mountin
g
Chassis
Fiber
Type
TAP-
M253
1G/10G/400G Base 50/50 3.7dB 3.7dB LC (UPC) TAP-
M100T/TA
P-M200
SM (9/125
micron)
for 1310nm
or 1550nm
wavelengt
h
TAP-
M253T
1G/10G/25G/40G/100G/
400G Base
50/50 3.7dB 3.7dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M253LT
1G/10G/25G/40G/100G/
400G Base
50/50 3.7dB 3.7dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M253ULT
1G/10G/25G/40G/100G/
400G Base
50/50 3.7dB 4.2dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M263LT
1G/10G/25G/40G/100G/
400G Base
60/40 3.05dB 4.95d
B
LC (UPC) TAP-
M100T/TA
P-M200
TAP- 1G/10G/400G Base 70/30 2.0dB 6.1dB LC (UPC) TAP-
Table 3: SM, LR TAP Modules
1The insertion loss numbers were tested using MPO/MTPTM cabling.
Contents 15
G-TAP M Series Hardware Guide

G-TAP
M
Series
Modul
e
Speed Split
Rati
o
Max
Networ
k Loss
Max
TAP
Los
s
Connect
or
Mountin
g
Chassis
Fiber
Type
M273 M100T/TA
P-M200
TAP-
M273T
1G/10G/25G/40G/100G/
400G Base
70/30 2.0dB 6.1dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M273LT
1G/10G/25G/40G/100G/
400G Base
70/30 2.0dB 6.1dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M273ULT
1G/10G/25G/40G/100G/
400G Base
70/30 2.0dB 6.6dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M453
40G/100G/400G 50/50 3.7B 3.7dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M453T
40G/100G/400G 50/50 4.3dB 4.3dB MPO/MTP
(UPC)
TAP-
M100T/TA
P-M200
TAP-
M473
40G/100G/400G 70/30 2.0dB 6.1dB LC (UPC) TAP-
M100T/TA
P-M200
TAP-
M473T
40G/100G/400G 70/30 2.8dB 6.7dB MPO/MTP
(UPC)
TAP-
M100T/TA
P-M200
NOTE:TAP-M453 and TAP-M473 support 100Gb CWDM4, in addition to LR4.
Table 4: BiDi TAP Modules describes the BiDi TAP modules.
G-TAP M
Series
Module
Speed Split
Ratio
Max
Network
Loss
Max
TAP
Loss
Connector Fiber Type
TAP-M506 40Gb 50/50 3.9dB 3.9dB LC (UPC) MM (50.5/125
micron) for
850nm/900nm
wavelength
TAP-M506A 40Gb/100Gb 50/50 3.9dB 3.9dB LC (UPC)
TAP-M506T 40Gb/100Gb 50/50 3.9dB 3.9dB LC (UPC)
Table 4: BiDi TAP Modules
Table 5: MM, SR and SM, LR Breakout Panels describes the MM, SR and SM, LR breakout
panels.
Contents 16
G-TAP M Series Hardware Guide

G-TAP M
Series
Breakout
Panel
Speed Network
Loss
Connector Fiber Type
PNL-M341 40Gb SR4
100Gb SR4
≤0.70dB MPO-12 (UPC) MM (50 micron) for 850nm
wavelength
10Gb SR
25Gb SR
≤0.30dB LC (UPC) MM (50 micron) for 850nm
wavelength
PNL-M341T 40Gb SR4
100Gb SR4
≤0.70dB MPO-12 (UPC) MM (50 micron) for 850nm
wavelength
10Gb SR
25Gb SR
≤0.30dB LC (UPC) MM (50 micron) for 850nm
wavelength
PNL-M343 40Gb PLR4
100Gb PLR4
≤0.75dB MPO-12 (APC) SMF-28e for 1270 ~ 1630nm
wavelength
10Gb LR
25Gb LR
≤0.30dB LC (UPC) SMF 1310nm wavelength
PNL-M343T 40Gb PLR4
100Gb PLR4
≤0.70dB MPO-12 (APC) SMF-28e for 1310/1550nm
wavelength
10Gb LR
25Gb LR
≤0.30dB LC (UPC) SMF 1310/1550nm
wavelength
TAP-M452 100G 3.90dB MTP
Table 5: MM, SR and SM, LR Breakout Panels
Physical Weight and Dimensions
Table 6: Physical Weight and Dimensions of Chassis and TAP module describes the
physical weight and dimensions of Chassis and TAP module.
Feature Height Width Depth Weight
Chassis 1.72in
(4.38cm)
17.3in
44.0cm)
6.10in
(15.5cm)
Empty: 3.84lbs
(1.7kg)
Full: 12.2lbs (5.5kg)
TAP Module 0.84in
(2.14cm)
5.38in
(13.7cm)
8.94in
(22.7cm)
1.4lbs
(0.64kg)
Breakout Panel 0.84in
(2.14cm)
5.38in
(13.7cm)
8.94in
(22.7cm)
1.4lbs
(0.64kg)
Table 6: Physical Weight and Dimensions of Chassis and TAP module
Electrical Characteristics
G-TAP M Series TAP Module Specifications describes the electrical characteristics of the
G-TAP M Series modules.
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G-TAP M Series Hardware Guide

Type Specification
Power Requirements Not Applicable. The G-TAP M Series modules are passive.
Link TAP Capacity Each module taps up to six duplex links (three for MPO
cabling). Each link produces two outputs: one from each
direction in the link. Up to six modules can be housed in
the 1 RU G-TAP M Series chassis.
Operating Temperature 32°F to 140°F (0°C to 60°C)
Storage Temperature -4°F to 158°F (-20°C to 70°C)
Storage Humidity 10% to 90%, relative, non-condensing
Altitude Up to 15,000ft (4.6km)
Table 7: Electrical Characteristics of the G-TAP M Series Modules
Troubleshooting and Best Practices
This section provides information about some of the common issues that you may face
when cabling TAPs and how to troubleshoot the issues. It also lists few best practices
that you must follow to ensure smooth cabling. Refer to the following sections for details:
Common Issues and Troubleshooting
This section lists few common issues that you may face when cabling TAPs and how to
troubleshoot the issues.
Common Issues Description Troubleshooting Tips
Misconnected cabling
or using wrong cable
types
Sometimes, cables may be
mislabeled due to which you
may have plugged in the wrong
cable.
Each transceiver is designed and optimized to
work with specific cables for specified
distances. Ensure that you connect the
appropriate transceivers and cables on both
ends. Refer to the “Cable Matrix for Copper
TAPs and Fiber TAPs” in the GigaVUE-OS
Compatability and Interoperability Matrix.
Failure to breakout
monitored links
There may be instances when
the switch and router
connections that use standard
duplex cabling are not broken
out into simplex fiber cables on
the receiving end.
Ensure that both monitor links are broken out
into simplex fiber cables and are individually
attached to the Rx connections on the
receiving end.
Flipped connections Sometimes, a duplex cable may
not be crossed properly such
that the Tx on one end is
connected to the Rx on the
other end. The issue could be
anywhere along the cabling
path or the patch panels, which
Disconnect the plastic housing and flip the LC
connections on one end of the connection.
Common Issues and Troubleshooting
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G-TAP M Series Hardware Guide

Common Issues Description Troubleshooting Tips
means that the light is not
passing through the cable.
Mismatched
transceivers
The transceiver type used on
both ends of the connection is
not identical.
Ensure that the transceiver type is identical
on both ends of the connection. For example,
a 10G LR4 transceiver that sends traffic from
one end must be paired with the same
transceiver type on the receiving end.
Dirty connections Dust, dirt, and oils all inhibit light
and cause poor connections.
Use new cables with dust caps. Clean all
connections before use. Refer to the .
Bad transceivers A transceiver is an electronic
component that is designed to
transmit and receive light. It can
malfunction.
Always keep spare transceivers and replace
them as required.
Bad TAPs Passive TAPs are the most
reliable networking and security
products available because they
contain a minimal number of
components and do not require
any software. But like any
hardware, a TAP could be
defective.
Always keep spare TAPs and replace them as
required.
Crimped Cabling If a bend is too tight, the fiber
will not be able to properly
transmit the signal.
Ensure that the bends in the cabling are not
tight so that the fiber transmits signal
properly.
Bad connections Light degrades at given rates
over distance. Light may also
degrade with too many
connections. Both these
scenarios may cause bad
connections
Do not exceed specified maximum distances.
Be aware light degrades with each
connection; use as few patch panels as
possible.
Generic Troubleshooting Steps
Most TAP failures are due to improper cabling. To troubleshoot a TAP failure, you must
ensure that the light is not impeded or broken along the way from the beginning till the
end of the connection. Figure 23Troubleshoot Generic TAP Issues is a flow chart that
illustrates the generic steps to troubleshoot TAP failures. Follow the steps provided in the
flow chart to isolate the issue and take corrective action.
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G-TAP M Series Hardware Guide

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G-TAP M Series Hardware Guide