The Wire 4x09

• The Wire 4x09 Light

Contents.Signaling units and trunk circuits The E&M standards were initially developed by and extended by national PTT administrations. The standard defines two sides to the interface:. Trunk circuit – this is normally the PABX. Signaling unit – this used to refer to the special modem that converted the DC signaling systems into tones that could be transmitted over a 4-wire link back to the PTT exchange.The signaling unit and trunk circuit communicate their status over the E and M leads, using a combination of battery and earth (also known as ground).

The Battery signal used in the standard is nominally −48VDC. All E&M installations require that the positive terminal of the battery is connected to a shared reliable earth. The maximum distance between the signaling unit and the trunk interface is determined by the resistance of the wire, but will normally be less than 100m for adequate noise immunity.Variants The group of E&M signaling includes the following variations:.

Type I is the most common standard in North America and Japan, and signals an outgoing call from the PBX to the signaling unit with Battery on the M ('Mouth') lead. Incoming calls from the CO are signaled by an earth (ground) signal on the E ('Ear') lead. The interface is vulnerable to poor earthing at either end, and interference from external electrical noise which act on inferior voice signal quality. Types II to IV are variants which attempt to overcome the main limitation of Type I, which is the reference to earth at each end of the circuit. Types II-IV use the Signal Battery (SB) and Signal Ground (SG) lead in conjunction with the E&M wires. This improves noise immunity as the Signal Ground does not carry the same heavy currents as normal ground connections and provides a low resistance return path for signaling.

However, if the main ground connection fails all earth current may flow via the interface, causing signaling failure, hum and in extreme cases destruction of equipment. Type V is the most common variant in use outside United States.

In contrast to Type I, both ends of the connection indicate a call by grounding the relevant lead. This means that it is easy to interconnect two PABXs 'back-to-back' by crossing over the E&M leads and transmit and receive pairs. SSDC5 is commonly used in the United Kingdom and unlike Type V the on- and off-hook state, are backwards to allow for fail-safe operation. If the line breaks, the interface defaults to busy.Number of wires E&M defines eight wires:. E: It is often called ear.

M: It is often called mouth or magneto. SG and SB: signal ground and signal battery. T and R: Tip and Ring – the ground and battery of the receiver voice pair.

T1 and R1: the ground and battery of the transmitter voice pair4-wire E&M uses a 4-wire (2-pair) transmission path for the voice signal.2-wire E&M uses a single pair for both transmit and receive voice signal. This is much inferior to 4-wire E&M as the 2-wire interface uses hybrid transformers which reduce signal quality and can introduce echo.Address signaling The mechanisms described so far only allow circuit seizure – and – to be signaled. In order to allow dialing over the interface, 'start' signaling mechanisms are defined. This allows the other end to know when to send the dialed digits, which are transmitted by pulse or tones.

E&M defines three methods of 'start' signaling:. Wink Start – when the originator goes off hook, the other end transmits a short (140-290ms) off-hook signal and returns to on-hook. The originator detects the wink and then sends the dialed digits.

The other end goes permanently off-hook (seized) when the call is answered. Delay Start – the originator goes off hook, waits a pre-defined delay, and then checks for on-hook from the other end before sending the digits. Immediate Start – The originator goes off hook, waits 150ms and then sends the dialed digits.Origin of 'E&M' The choice of letters for the E and M leads was fortuitous, unrelated to any names or meanings. However, various names have been associated with the letters E and M:.

E for ear, i.e., when the near-end E lead was grounded, the far end was calling and wanted your ear. Whereas M is commonly called mouth, because when the near-end wanted to call (i.e., speak to) the far end, −48 vdc was applied to that lead. E for earth and for M, from the very earliest days of telephony. An actual magneto was used to apply −48 volts to the M lead through mechanical relay switches, while the E lead is normally held to ground (earth) unless acknowledging the signaling from the M lead.

In another, the proposed labels were R and T for reception and transmission of signaling. However were already used as labels for the tip and ring wire pair carrying voice signals. Thus a letter within each of the word recEive and transMit was chosen. Yet another explanation is that these were sequential designations on the wiring list of the original design.See also.References.

The Wire 4x09 Light

Contents.Plot Summary School takes his second class of the day. He sets them a problem requiring division of apples between people. Is distracted by his classmate Calvin. Prez asks Calvin the answer and Calvin guesses correctly. He explains his rationale to the class: when going through the problem with the previous class, Prez tapped the correct answer several times, leaving chalk marks around it.

After school Randy walks home with and his younger brother Bug. Michael quizzes Randy about how he was able to return to school and Randy keeps quiet about his involvement with the police. Michael warns him about getting involved with authority figures. Randy tells him it doesn't matter as his foster mother, Miss Anna, now has him on a short leash. Michael points out that Randy is lucky to have a leash at all.The next day Prez takes his class through their state mathematics test. Calvin and Charlene struggle with the change in the particulars from their practice work but is able to apply the skills he learned to the new problem. When he tries to explain it to Charlene she storms out of the classroom.

Colvin continues his discussion of what makes a good corner boy with the special class. Namond and Kwame are emphatic about the need to prevent your people stealing from you because otherwise their thieving will spiral out of control. Is insistent that a beating for anyone caught is the way to prevent stealing. Darnell suggests that proof is needed before a beating; instead he suggests making the worker pay you back and if they complain, you know they are stealing. Colvin asks why the beating is necessary and Darnell and Markeith tell him that someone is always watching on the street and you cannot appear to be weak.Namond tells Randy and Michael about the discussion on their way home from school. Michael asks Namond if he is coming to the gym and Namond tells him he has to work on selling off the rest of his package.

Dukie remains in class after school playing on the computer. When catches her son Namond working on his package in his bedroom she angrily tells him that the police could seize their house if the drugs are found there and insists he hand the task on to a lieutenant.Michael gets home to find that his mother has sold his groceries for drug money. He gives her ten dollars when she tells him she is going out. She threatens to take the card from him.

He insists on keeping the card. When Michael gets home from the gym, Bug tells him that has returned. Michael is dismayed and repulsed when the man goes to touch him. He shares a disbelieving glance with his mother. Michael confronts his mother, telling her that she has broken her promise by allowing Bug's father to return. She is unconcerned and tells Michael that things are going back to the way they were.

Michael is stunned and she says that people change and tells Michael that Bug's father will now hold the DSS card.The next day an energized Namond raises the hypocrisy of a system that promises to reward him for good behavior when it fails to live by its own rules much of the time; he states steroids, liquor, cigarettes and as examples. Darnell points out that even Colvin's police work focused on drugs, so in a way, drugs paid Colvin's salary. Zenobia claims that the street life is just part of the larger system. Prez discusses his class's difficulty with the test with his colleagues. They reassure him that performance is low across all subjects. Hanson and Shapiro tell him he must follow the curriculum.

Tells Prez to spend some time teaching the test and some time teaching more accessible subject matter. Hanson offers typical sage advice: Prez's first year as a teacher has to be less about the children and more about him surviving.At lunch, Prez watches Dukie show and her friends how to shop for jewellery on the internet. He notices that Michael is despondent at the back of the class. Prez asks if Michael is okay, but Michael hesitantly declines to confide in him. Prez leaves his offer open and suggests that Michael could talk to the school social worker.

Michael goes to pick Bug up after school but learns from Miss Ella that his father has already taken him. Michael runs out of the school after them. He finds Bug doing homework with his father and pulls Bug away from him.Parenti, Colvin and the special class teacher discuss their progress. The academics are impressed with their results but have noticed that some of the children are not participating — those with deeper problems in particular. The teacher has seen signs of and believes that Chandra has real psychological problems. Parenti wonders whether they can convince the corner kids to take an interest in subjects beyond drug dealing.Namond gives his package to and tells him that he is a lieutenant and warns him not to cheat him on the profits.

Namond delivers his takings to his mother and she notices that he has made less than she would expect from a full package. He blames his territory, but she goes to tackle about territory.Homicide briefs his squad before their shift. He introduces them to, who is observing them. He announces the death of and that the wake will be that evening.

When Carcetti pours the last of the coffee, Greggs angrily insists that he should make another pot; she is hostile towards Carcetti because of the political interference in the Braddock case. Carcetti asks the detectives to continue as usual. Greggs, Freamon and Landsman immediately stop pretending to work. They tell Carcetti that things are different when they have a body.

Bunk tries to convince Holley and Crutchfield to revisit the scene of the shooting for which has been arrested. They remain resistant to his efforts to get them to reopen the case.

Carcetti approaches them and remarks on the case load they face. Crutchfield insists they can handle it.

Crutchfield continues the conversation in an interview room and becomes enraged with Bunk. As the three detectives talk, Crutchfield claims that Omar is just another petty criminal whose name rings up on multiple open cases including two of Bunk's.

Crutchfield becomes more enraged with Bunk's attempts to go back on the case, thinking that he is doing so to discredit Crutchfield's clearance. After Crutchfield leaves, Bunk appeals to Holley to look over the scene one more time.At Foerster's wake in the bar, Bunk is so drunk he runs outside to vomit. Upon returning, he is disgusted to find drinking club soda. The next day Holley accompanies Bunk to their witness, who retells the story to Bunk. Bunk finds it hard to believe that Andre would leave the bulletproof area when only threatened by a 9mm handgun.

Andre explains that he was trying to save the delivery woman's life. Bunk spots the bullet hole from Omar's actual robbery and asks Andre about it. Andre claims the perpetrator wore a mask and he did not find time to report it. Bunk asks Andre to come to the office with them, but he refuses.

Bunk claims that Andre's 'whole story's fucked' as it makes no sense for Andre to have survived the robbery as a live witness. Bunk then states the store's main function is a drug depot having noticed the reinforced steel door, low inventory, and security cameras, and it would not make sense for Omar to first rob the store with a.50 caliber, a gun strong enough to shoot through Andre's glass, and then come back a second time with a much less powerful gun. Bunk points out that Andre's motive for lying is that he wants to take revenge for the robbery of his stash and convinces Holley that Andre ran a con on the police. Bunk returns to Andre's store with a grand jury summons, finding him talking with a prostitute named before bringing him in. Andre is warned that lying to the grand jury is a much more serious charge than lying to the police. When Bunk and Holley deliver the news to Landsman, he is enraged that he has lost a clearance thanks to Bunk's interference.

Landsman also berates Holley for not standing up for himself.Major crimes castigates having just received a harassment complaint. The complaint is from the woman who was stopped with Marlo. He asks Herc for the source of the tip that led him to making his stop. Herc claims it was from a confidential informant. Marimow demands the source's name and Herc says 'Fuzzy Dunlop.' Herc has been illegally pocketing the payments made to the non-existent CI since season two.Herc and Dozerman make a traffic stop on Marlo. Herc insists that Marlo return his camera and Marlo promises nothing, but takes Herc's card.

After Marlo leaves, Dozerman urges Herc to come clean about the camera to Marimow. Herc persists in harassing Marlo hoping that he will convince him to give the camera back. He enlists the Western DEU squad in making a raid on Marlo's courtyard hangout. Herc stops Chris and Snoop who hide their guns in an electric hidden compartment in their vehicle's dashboard, but Herc finds their lye and nail gun in the trunk.

He fires a nail into the pavement and tells them he wants his camera back.Herc and Dozerman discuss their next move now that intimidation has failed. Herc remembers Randy's information about Little Kevin and suggests they look for him to get information on Lex's murder to get to Marlo.Stanfield Organization and casually deposit the bodies of two New York drug dealers in a vacant building, board it up and then go out for Chinese food. Later they teach some young Stanfield soldiers tradecraft for killing on the streets.Marlo delivers Herc's card to. Joe promises to look into it and thanks Marlo for the work his people are doing driving away the New York drug dealers. Slim Charles suggests that Marlo's technique of disappearing the bodies of his soldier's victims is lessening the impact of their kills.

Marlo promises to discuss this issue with his associates.Joe phones the police department and poses as a lawyer who needs to speak to Herc. He is transferred to Lieutenant Hoskins at the mayor's security detail who tells him that Herc has been reassigned to the Major Crimes Unit. Upon being transferred again, Joe learns that Herc is patrolling the streets and then hangs up without leaving a message.Chris and Snoop hit the streets to find more New York dealers.

Chris wants Snoop to ask the dealers; if they answer incorrectly, they will get shot. Chris suggests asking a question about Baltimore music, but Snoop is not familiar with the subject. When she almost kills a local dealer by mistake, Chris takes over asking the questions. Later, they find a New York dealer, and when he says he doesn't understand what Chris is asking, they shoot him, leaving his body on the street.Chris and Snoop are stopped by Herc. They throw their weapons into the harbor afterwards and when Chris throws away the nail gun too, Snoop tells him that he owes her $800.Politics continues his observation of the Baltimore Police Department at work spending the day in the Eastern District with the DEU squad.

The shift lieutenant introduces him to a team of confident detectives at their morning briefing. They make their first arrest by enticing a man on his way to work to buy drugs for them.

Carcetti catches up with the flex squad and finds that they are also making an arrest with little more than statistical value: a young boy they have pulled up for possession. The flex squad officers try to get the boy to give them information on a stash, but he has nothing to tell them. The lieutenant seems positive about the work his men are doing.Carcetti questions about the unimpressive low-level busts. Rawls insists that he agrees with Carcetti and indirectly blames Commissioner, claiming that policies sometimes advance black officers beyond their capabilities, and that a leader who owes his position to the 'numbers game' of affirmative action would consequently care more about numbers—such as arrest statistics—than about genuinely reducing crime. Rawls claims that targeting high-end drug dealers would be his preference, but that he respects the chain of command. Rawls admits that the BPD is 'putting a band-aid on cancer' to fight the war on drugs and that he would be interested in leading the department into a different investigative strategy.After the meeting, is offended by Rawls' 'naked appeal to racial solidarity.'

Carcetti asks Wilson about, whom Carcetti views as a competent and good police officer. Wilson tells him that he does not have any political connections. Visits Daniels at his office and finds him on the phone with Carcetti. Daniels tells her that Carcetti wants to meet with him to discuss what is successful in the police department.

Daniels asks Pearlman how honest she thinks he should be. Pearlman tells him to be himself despite his worries that the mayor will not get rid of Burrell and Rawls.Carcetti, Wilson and Gerry meet with representatives from the Democratic party to discuss strategy for his term.

They hope to induce a drop in crime and build something in the downtown area with Carcetti's name on it. The party representative suggests that education is a good polling issue, but Wilson tells her that with the problems in Baltimore's schools, Carcetti will be better off avoiding that topic. The party hopes that Carcetti will run for governor in 2008. Carcetti meets Daniels to discuss his concerns about the department. Daniels tells Carcetti that much of day-to-day police work in Baltimore is a waste of time, energy, efficiency, money and in some cases, talent.

Carcetti reveals that Rawls has blamed Burrell's numbers game. Daniels doesn't buy it, but he refuses to criticize his superiors with Carcetti. He does alert Carcetti about Rawls' gutting of the Major Crimes Unit. Carcetti offers Daniels the CID Commander position under Rawls as a Colonel. Daniels asks Carcetti if he can trust him; Carcetti suggests they find out together.When Burrell visits Rawls to discuss trying to impress the new administration together, he realises that he has already been talking to Carcetti and that Rawls is moving against him.Production Title reference 'Corner Boys' references the terminology used to describe the disruptive students in school, and the focus taken by Colvin's group to relate to them in terms of what they know: the streets of Baltimore.

The term comes from Baltimore area slang for the street level drug dealers, usually adolescent males, who literally stand on street corners and sell drugs.Epigraph We got our thing, but it's just part of the big thing. — ZenobiaZenobia makes this statement in Colvin's class to back up Namond, claiming that the students' drug dealing is related to the activities of larger legitimate systems.Tribute The police wake for is a tribute to Richard DeAngelis, the actor who played Foerster who died from during the shooting of Season 4.' ' is played at the wake at Kavanaugh's bar, as it had been at Ray Cole's wake from the third season.Credits Starring cast Although credited, and do not appear in this episode.Guest stars. as. as. Julito McCullum as. as.

as. as. as. Alfonso Christian Lover as. as.

as. Cyrus Farmer as.

Sandi McCree as. as. Rico Sterling as Calvin. Jason Wharton as. Stacie Davis as Miss Duquette. Dan DeLuca as.

Dravon James as. as.

Davone Cooper as. Taylor King as. Rakiya Orange as Charlene Young.

Devin Tweedy as Unknown. as. Rick Otto as. Gregory L.

Williams as. as. Zakiya Jefferson as Unknown. as. Jeffrey Wendell Moffat, Jr.

As Stanfield Trainee. Imani Robinson as Unknown. Keenon Brice as.

as. Kayte Dzime-Assison as Ava. Genevieve Hudson-Price as. Denise Preddy as Miss EllaUncredited appearances.

as. as. Ryan Sands as. Karen Vicks as. Destiny Jackson-Evans as.

Susan Rome as. Michael Coley as Kwame. Na'Dria Jennings as Chandra Porter. Diana Villamonte as Mrs. Rachel Shapiro.

Demetria Bailey as Mrs. Perlene Scott. Dolly Turner as Ms. Hanson. Unknown as girl with dreadlocks.

Unknown as Markeith. Unknown as Eastern Shift Lieutenant. Stephen Graybill as Eastern DEU Detective #1. Unknown as Eastern DEU Detective #2. Unknown as Eastern Flex Squad Detective #1. Unknown as Eastern Flex Squad Detective #2. Unknown as Eastern Officer.

Unknown as Arrested Cyclist. Unknown as Possession Kid. Unknown as Lieutenant Hoskins. Unknown as Baltimore Dealer. William BJ Butler as NY DealerFirst appearances. (Bug's father): an ex-convict who is loathed by Michael.References.